The Amazing Michelinoceras Brothers - The Pteranodon family travels deep underwater on the Dinosaur Train to view two backwards-bounding brothers named Max and Mitch Michelinoceras. The kids are delighted to see that Max and Mitch put on a synchronized swimming show. Dads' Day Out - Buddy, Tiny, and Mr. Pteranodon join Annie Tyrannosaurus and Leroy Lambeosaurus and their dads for a Dads' Day at the Big Pond. It's all fun and games until it starts to rain, and they all have to take cover in a cave they've never noticed before.

Tiny wakes up feeling a little sad. When asked why, she can't really explain it: "Sometimes I just feel sad." To cheer her up, Shiny decides to show her how much she loves her. It goes over so well it starts a love-sharing chain reaction, as one by the one the Pteranodon Family gets in the on the action! / After Tiny, Shiny, Buddy, and Don are feeling "over-burdened" by chores and requests for help with small things from Mom and Dad - basically the kids just want to play - a plan is hatched. Mom and Dad come up with a fun scavenger hunt in the nest area that cleverly has the kids doing their chores even as they play. The hunt includes simple riddles the kids have to solve. Mom and Dad have certain items to be hunted for that involve cleaning up an area first, etc. (Note: it's the beginning of Autumn, so some leaves are changing colors, others are falling.) A surprise last scavenger clue brings the family to the Dinosaur Train to consult with the Conductor and have a Dining Car dinner.

Carla Cretoxyrhina - On this underwater excursion, the Pteranodon family meets up with Carla Cretoxyrhina, a young shark who turns out to be much nicer than her reputation suggests. She introduces the family to her dad, bringing them face to face with the "Big Fish in the Sea." Train Trouble - The speedy dinosaur brothers Oren and Ollie join our kids on a train trip to Troodon Town, but unplanned engine trouble sends Oren and Ollie sprinting the Roundhouse to bring back another engine to save the day!

The Old Bird - Buddy, Tiny and Mom make a play date with Petey Peteinosaurus to ride the Dinosaur Train to meet Arlene Archeopteryx, a bird from the family of the oldest birds ever! The kids are excited to learn that Arlene is a bird and a dinosaur. Home With Shiny & Don - Shiny and Don stay at home and we get to see that just because they don't always ride with Buddy and Tiny on the Dinosaur Train doesn't mean that they are not having fun. An adventure into a local caves leads to a marvelous and brilliant discovery.

The Wing Kings - The Pteranodon family stretches their wings at Quetzalcoatlus Canyon, where Mr. Pteranodon flew when he was younger and nicknamed, the "Wing King." Now, the Pteranodons and Buddy meet Quincy Quetzalcoatlus and his Dad, another Wing King, a huge flying bird. Together, the two "Wing Kings" wow their kids with some sensational aerial acrobatics. The Big Mud Pit - There's big trouble at the Big Pond when Dad and Larry Lambeosaurus get stuck in the mud. Buddy and Leroy Lambeosaurus devise a plan to pull their dads out before they sink deeper into the mud!

"Junior Conductors Academy: Part One" - The kids are all excited! Why? Because they're off to Junior Conductor's Academy in Laramidia, to try to become Junior Conductors First Class. Buddy has a feeling he's going to be a star in class, until he meets Dennis Deinocheirus - a kid who knows even more dinosaur facts than he does! Can Buddy get over his disappointment that he's not the smartest kid in class, and make friends with Dennis (who seems like he's having trouble making friends on his own)? "Junior Conductors Academy: Part Two" - Now that Buddy and Dennis are friends, they have to work together (with the other kids) in order to pass a series of tests. If they succeed, they'll receive their Junior Conductors First Class pins! But standing in the way of their success is the most challenging instructor of all... Thurston Troodon! Educational Objectives -- Deinocheirus, from the Ornithomimosaur family of theropods in the late cretaceous, had some of the longest arms of any bipedal dinosaur. Also, it's not always easy to make friends with someone you don't understand, but if you take the time and make the effort, it might not be as hard as you think.

Iggy Iguanodon - The Pteranodon family continues their World Tour and meets Iggy Iguanodon, a funny chap who shows them his unique way of walking while leading our family to some white cliffs where Dad is very excited to fish and dine! Shiny Can't Sleep - Shiny gets homesick while the Pteranodon family is away from home on their World Tour. She cannot sleep, so Mr. Pteranodon takes her around the Dinosaur Train and they observe the train at night and the activities of various nocturnal creatures.

The Old Bird - Buddy, Tiny and Mom make a play date with Petey Peteinosaurus to ride the Dinosaur Train to meet Arlene Archeopteryx, a bird from the family of the oldest birds ever! The kids are excited to learn that Arlene is a bird and a dinosaur. Home With Shiny & Don - Shiny and Don stay at home and we get to see that just because they don't always ride with Buddy and Tiny on the Dinosaur Train doesn't mean that they are not having fun. An adventure into a local caves leads to a marvelous and brilliant discovery.

Kenny Kentrosaurus - As the Pteranodon's World Tour nears its end, the Pteranodon family travels to Africa to meet a Stegosaur named Kenny Kentrosaurus. He teaches the kids about his spikes and his tail, showing them how to thump, prompting a fun drumming party! Don and the Troodons - The Pteranodon family oversleeps and rushes to go on another World Tour! Don is allowed to stay back on the Train and he ends up having a fun and educational day with the Conductor and his mom, Mrs. Conductor!

"Junior Conductors Academy: Part One" - The kids are all excited! Why? Because they're off to Junior Conductor's Academy in Laramidia, to try to become Junior Conductors First Class. Buddy has a feeling he's going to be a star in class, until he meets Dennis Deinocheirus - a kid who knows even more dinosaur facts than he does! Can Buddy get over his disappointment that he's not the smartest kid in class, and make friends with Dennis (who seems like he's having trouble making friends on his own)? "Junior Conductors Academy: Part Two" - Now that Buddy and Dennis are friends, they have to work together (with the other kids) in order to pass a series of tests. If they succeed, they'll receive their Junior Conductors First Class pins! But standing in the way of their success is the most challenging instructor of all... Thurston Troodon! Educational Objectives -- Deinocheirus, from the Ornithomimosaur family of theropods in the late cretaceous, had some of the longest arms of any bipedal dinosaur. Also, it's not always easy to make friends with someone you don't understand, but if you take the time and make the effort, it might not be as hard as you think.

Carla Cretoxyrhina - On this underwater excursion, the Pteranodon family meets up with Carla Cretoxyrhina, a young shark who turns out to be much nicer than her reputation suggests. She introduces the family to her dad, bringing them face to face with the "Big Fish in the Sea." Train Trouble - The speedy dinosaur brothers Oren and Ollie join our kids on a train trip to Troodon Town, but unplanned engine trouble sends Oren and Ollie sprinting the Roundhouse to bring back another engine to save the day!

While Mikey Microraptor is visiting Tiny at the family nest, next-door neighbor Larry Lambeosaurus tells Mikey that he can't actually be a dinosaur, since he's so small, and all dinosaurs are gigantic. Tiny and Mikey decide to show Larry he's mistaken. They take the Dinosaur Train to find the tiniest dinosaur of all - in Jurassic China. There, they meet Yi qi, a new tiny dinosaur, the size of a pigeon, whose name means "strange wing" because its wings are made of skin! She's otherwise covered in feathers. Tiny and Mikey learn Yi qi's point of view: "Everyone thinks dinosaurs are huge. I'm small, but I'm still a dinosaur!" Mikey is thrilled to meet a dino smaller than himself. Then Mikey, Tiny, and Yi qi bond over being small but proud, and exclaim their rallying cry of "Tiny Power!" Yi qi joins this group of tiny dinosaurs. The Conductor is inspired to create a Tiny Dinosaur Train, especially adapted to accommodate tiny dinosaurs. Larry meets the tiniest dinosaur when the Tiny Dinosaur Train rolls into the station, is properly impressed, and the kids sing a new "Tiny Power!" song / Buddy and Tank Triceratops are best friends, and they share a love for comparing features. Tank, who has 3 horns, wonders why Mayor Kosmoceratops has 15, and Protoceratops has only 1. Buddy, Tank, and the other kids go on a quest to track down Ceratopsians with horns numbering from 1 to 15. In their travels, they end up meeting "the Queen," an amazing Late Cretaceous Regaliceratops, who has a very decorative frill that almost rivals Kosmoceratops for number of horns!

Dinosaur Big City Part III - The Dinosaur Train arrives in Laramidia, the Dinosaur Big City, and Buddy and the Pteranodon family explore the crowded "dinosaur metropolis." At the Theropod Convention, our kids reunite with Annie Tyrannosaurus and her parents Dolores and Boris, and they all meet the multi-horned mayor, Mayor Kosmoceratops! Dinosaur Big City Part IV - Buddy and Tiny help King Cryolophosaurus overcome his fear of performing in front of his biggest audience ever, and he wows a large dinosaur audience when he sings his new song, "Whole Lotta Theropods" at the Theropod Convention in Laramidia, the Dinosaur Big City.

Mom takes the kids on a playdate with Tank Triceratops to the desert, where they meet a distant relative of Tank's, an early Ceratopsian named Penelope Protoceratops. The Conductor points out that Penelope lives in a part of the world that gets a lot of earthquakes, and sure enough, the kids experience their first quake with Penelope. Mom and the Conductor have prepared the kids with excellent advice about what to do in an earthquake, so everyone does fine. When the family rides the Dinosaur Train, they learn that a new car has been added - a Nursery Car, with dozens of eggs in little, padded nests, attended by their expectant moms and dads. The kids watch the eggs hatch, and try to guess which hatchling goes with which dinosaur parent.

When the Pteranodon family takes the Dinosaur Train under the sea to visit their friend Elmer Elasmosaurus, they learn that the Elasmosaurus family is going away from the station to follow their food, the fish. Buddy wants to follow, but the train tunnel doesn't go that way - so the Conductor decides to take the family in a brand-new invention, the Dinosaur Train Submarine! On their journey, they meet a marine reptile called Otto Opthalmosaurus, who guides the submarine deeper than it's ever been, and even helps them find their way out of a sea cave. During a day at Troodon Town Music Festival, the Pteranodon family and King Cryolophosaurus hear a wonderful singer named Crystal Cryolophosaurus. King is very interested in becoming friends with Crystal, another dinosaur of his species, but he gets very nervous when trying to talk to her. Tiny and Buddy help King overcome his nervousness, and he and Crystal end up friends who happily sing together.

Dinosaur Big City Part I - Buddy and the Pteranodon family begin their journey on the Dinosaur Train, gathering all their Theropod friends together to travel to a really big Theropod Club Convention which is being held in Laramidia, the "Dinosaur Big City"! Dinosaur Big City Part II - The Pteranodon family continues their journey to the Theropod Convention in Laramidia, the Dinosaur Big City! Among the Theropod dinosaurs that ride the Train with them is King Cryolophosaurus, who sings his songs "Big Ol' Whistle-Stop Rock-n-Roll Dinosaur Tour" and "Whole Lotta Theropods"!

Shiny gets over her fear of snakes when Tiny challenges the Nature Trackers to meet the ultimate snake: the Sanajeh, a huge Cretaceous snake from what is now India. Dad takes the kids on the Dinosaur Train to find Sana Sanajeh, who may be huge, but turns out to be quite friendly. Once Shiny and Sana become friends, Shiny returns home with the knowledge that snakes aren't scary - they're just another part of nature! Tiny is horrified when her favorite buttercups all wilt, so Mom takes her and the family to the Big Pond, where she remembers seeing a whole lot of buttercups in bloom. On the way there, the Conductor gives the kids a visual lesson in "Nature's Life Cycle," explaining how a flower grows, blossoms, then wilts, and returns its seeds to the ground, to start the cycle all over again. Tiny finds her flowers at the Big Pond, both blooming and wilting, and can see nature's life cycle in action.

Dinosaur Big City Part III - The Dinosaur Train arrives in Laramidia, the Dinosaur Big City, and Buddy and the Pteranodon family explore the crowded "dinosaur metropolis." At the Theropod Convention, our kids reunite with Annie Tyrannosaurus and her parents Dolores and Boris, and they all meet the multi-horned mayor, Mayor Kosmoceratops! Dinosaur Big City Part IV - Buddy and Tiny help King Cryolophosaurus overcome his fear of performing in front of his biggest audience ever, and he wows a large dinosaur audience when he sings his new song, "Whole Lotta Theropods" at the Theropod Convention in Laramidia, the Dinosaur Big City.

Paulie Pliosaurus - The Pteranodon family takes the Dinosaur Train underwater to visit a marine reptile called Paulie Pliosaurus, a creature known as the "T. rex of the Ocean." Buddy and Paulie compare features and find that they actually have a lot in common. Elmer Visits the Desert - Our Pteranodon family takes their ocean friend Elmer Elasmosaurus on the Dinosaur Train to a place he's never been before: the desert! Once there, the kids compare the sandy terrain to Elmer's ocean, and they meet a local lizard named Percy who tells the tale of his desert home.

Night Train - Dad, Buddy and Tiny take a special ride on the Dinosaur Train at night, learning about animals that are active after dark, culminating at the Big Pond for a nature walk under the full moon. Fossil Fred - Buddy, Tiny and Don play "detective" and search around the Big Pond for fossils. The kids end up finding an entire skeleton of a Jurassic dinosaur.

Junior Conductor Jamboree - Our kids ride the Dinosaur Train from one end of the line to the other, through all three Time Periods -- from the Cretaceous, through the Jurassic, to the Triassic. All along the way, they pick up friends who join them for a Junior Conductor Jamboree! Troodon Train Day - The Pteranodon family rides to Troodon Town to celebrate Troodon Train Day, where the main event is a concert by King Cryolophosaurus, giving his first performance in years! When King comes down with some last-minute jitters, Buddy and Tiny help him overcome his stage fright and he sings a medley of his hits, including the Dinosaur Train theme song!

Dinosaur Big City Part III - The Dinosaur Train arrives in Laramidia, the Dinosaur Big City, and Buddy and the Pteranodon family explore the crowded "dinosaur metropolis." At the Theropod Convention, our kids reunite with Annie Tyrannosaurus and her parents Dolores and Boris, and they all meet the multi-horned mayor, Mayor Kosmoceratops! Dinosaur Big City Part IV - Buddy and Tiny help King Cryolophosaurus overcome his fear of performing in front of his biggest audience ever, and he wows a large dinosaur audience when he sings his new song, "Whole Lotta Theropods" at the Theropod Convention in Laramidia, the Dinosaur Big City.

When the Pteranodon family takes the Dinosaur Train under the sea to visit their friend Elmer Elasmosaurus, they learn that the Elasmosaurus family is going away from the station to follow their food, the fish. Buddy wants to follow, but the train tunnel doesn't go that way - so the Conductor decides to take the family in a brand-new invention, the Dinosaur Train Submarine! On their journey, they meet a marine reptile called Otto Opthalmosaurus, who guides the submarine deeper than it's ever been, and even helps them find their way out of a sea cave. During a day at Troodon Town Music Festival, the Pteranodon family and King Cryolophosaurus hear a wonderful singer named Crystal Cryolophosaurus. King is very interested in becoming friends with Crystal, another dinosaur of his species, but he gets very nervous when trying to talk to her. Tiny and Buddy help King overcome his nervousness, and he and Crystal end up friends who happily sing together.

Night Train - Dad, Buddy and Tiny take a special ride on the Dinosaur Train at night, learning about animals that are active after dark, culminating at the Big Pond for a nature walk under the full moon. Fossil Fred - Buddy, Tiny and Don play "detective" and search around the Big Pond for fossils. The kids end up finding an entire skeleton of a Jurassic dinosaur.

Paulie Pliosaurus - The Pteranodon family takes the Dinosaur Train underwater to visit a marine reptile called Paulie Pliosaurus, a creature known as the "T. rex of the Ocean." Buddy and Paulie compare features and find that they actually have a lot in common. Elmer Visits the Desert - Our Pteranodon family takes their ocean friend Elmer Elasmosaurus on the Dinosaur Train to a place he's never been before: the desert! Once there, the kids compare the sandy terrain to Elmer's ocean, and they meet a local lizard named Percy who tells the tale of his desert home.

The Conductor and the kids are out digging in a favorite fossil spot, out past the Big Pond. Buddy turns up something that the Conductor doesn't recognize. It's an excellent fossil - he guesses that they may have discovered a whole new Jurassic species! They all carefully finish digging out the beautifully intact theropod raptor skeleton and bring it to Troodon Town, where they can examine it at the Science labs at Troodon Academy. The experts agree: The Conductor and the kids have discovered a new Jurassic dinosaur! They nickname it "Buddysaurus." Now the Conductor must give a presentation to all the assembled Academy about this new Dracoraptor discovery. Used to being the authority and a kind of hilarious know-it-all, the Conductor is for once super-nervous and tongue-tied. The kids help him figure out how to properly and scientifically present his information and get over his nerves. Buddy leads them, and the kids even improvise a song about the new discovery, "A Brand-New Species!" It's a hit! / Buddy gets the idea to travel to the Early Jurassic and meet an example of their new discovery, a theropod they named "Buddysaurus." Unfortunately, since this is a brand-new-discovery, there is no train to the home of the Buddysaurus, nor a train station! The Conductor decides to take them all to the Early Jurassic, and hike from the nearest station to find this new theropod. And, they do! They discover that the theropod is actually called a "Dracoraptor." Our kids invite him to come back to Troodon Town with them so they can present him to the Troodon Scientists.

Dinosaur Big City Part I - Buddy and the Pteranodon family begin their journey on the Dinosaur Train, gathering all their Theropod friends together to travel to a really big Theropod Club Convention which is being held in Laramidia, the "Dinosaur Big City"! Dinosaur Big City Part II - The Pteranodon family continues their journey to the Theropod Convention in Laramidia, the Dinosaur Big City! Among the Theropod dinosaurs that ride the Train with them is King Cryolophosaurus, who sings his songs "Big Ol' Whistle-Stop Rock-n-Roll Dinosaur Tour" and "Whole Lotta Theropods"!

The kids visit the Big Pond to attend the Biome Block Party. While attempting to win the leaf-necklace contest, Keenan Chirostemotes claims the Pteranodon sibs can't compete for the prize for "dinosaur" with the most leaves because they are not dinosaurs. This launches the kids into a song called "That's Not a Dinosaur", as all the non-dinosaurs sing their piece. In the end, the game rules are changed to include all creatures, even non-dinosaurs, in all the contests! The Nature Trackers go on a visit to the Big Pond, where Tiny hopes to see her favorite flowers. The Conductor tells her that if the kids gather seeds at the pond, they can bring them home and plant a garden full of those same flowers at the family nest! The kids all get into it, gathering seeds and bringing them home, where they plant a garden, and meet its new inhabitants, including Sammy, a friendly slug, who explains that slugs, spiders, and butterflies all help to make a garden complete.

The Pteranodon family rides the Dinosaur Train - now with extra cars attached -- as it continues picking up more dinosaurs that are in the `Dinosaurs A to Z' song. The Pteranodon family reunites with some dinosaurs they've met before, and are introduced to species they've never met! The Pteranodon kids also learn about classification, and Don leads the way organizing the dinosaurs on the Train by their species, features, and size. The Pteranodon family is on the Dinosaur Train, now very crowded with all 26 dinosaurs mentioned in the `Dinosaurs A to Z' song. The Train has added more extra cars than it ever has, and there's even an additional engine to help pull the Train to Troodon Town. At Troodon Town, all the dinosaurs have fun at a picnic, and then Tiny leads the 26 different `A to Z' dinosaurs in a fun, rousing, and historic singing of the `Dinosaurs A to Z' song!

Dinosaurs in the Snow - Buddy and his Pteranodon family ride the Dinosaur Train to the North Pole - where it's cooler out and the skies are dark all winter long! The kids get to play in the snow and slide on a frozen pond for the first time. Cretaceous Conifers - The whole Pteranodon family have fun celebrating Mom's favorite holiday, Winter Solstice. They learn about large conifer (evergreen) trees and help decorate them at a holiday party.

Buddy, an adopted T. rex, wishes he knew more about his T. rex ancestors. So, Dad takes him and Tiny on the Dinosaur Train back to the early Cretaceous, to visit an ancestor: an earlier version of Tyrannosaurus rex called Raptorex. Rodney Raptorex is a kid who won't grow up to be as big as Buddy will, but the two boys find that they not only have a lot of differences, they have a lot in common, too. The kids are stuck cooped up in the nest for a long, rainy spell which leads to them fighting. Mom tells them that the rain has stopped enough that they can leave the nest but she gives them an assignment: to go find their own "calm space," where they can calm down enough to get along with each other again. It works - each kid finds something in nature that helps him or her to calm down and be friends again.

Buddy, an adopted T. rex, wishes he knew more about his T. rex ancestors. So, Dad takes him and Tiny on the Dinosaur Train back to the early Cretaceous, to visit an ancestor: an earlier version of Tyrannosaurus rex called Raptorex. Rodney Raptorex is a kid who won't grow up to be as big as Buddy will, but the two boys find that they not only have a lot of differences, they have a lot in common, too. The kids are stuck cooped up in the nest for a long, rainy spell which leads to them fighting. Mom tells them that the rain has stopped enough that they can leave the nest but she gives them an assignment: to go find their own "calm space," where they can calm down enough to get along with each other again. It works - each kid finds something in nature that helps him or her to calm down and be friends again.

While riding the Dinosaur Train with Buddy and Mom, Tiny gets the idea to gather all the dinosaurs in the `Dinosaurs A to Z' song for a picnic at Troodon Town. The Conductor agrees, and the Train starts picking up dinosaurs, as Tiny and Buddy help keep track of how many of the different species have come on board, and where they are on the dinosaur A to Z list. The Dinosaur Train continues traveling around the Mesozoic picking up more and more dinosaurs that are in the `Dinosaurs A to Z' song, on the way to a picnic at Troodon Town. As more train cars are added, and the rest of the Pteranodon family comes on board, Tiny and Mrs. Conductor team up to help keep order on the increasingly crowded Train.

The Theropod Club - Buddy's Theropod Club meets with other dinosaurs that walk on two legs, eat meat, and have three toed feet. But Tiny feels left out until the Club invites her to join too! Surprise Party - Shiny, Tiny and Don throw a surprise party for Buddy on the Dinosaur Train and invite a whole caboose full of his friends!

The Pteranodon family rides a special 'Night Train" to another part of the Cretaceous Time Period, where they meet a Troodontid "cousin" of the Conductor's, Sidney Sinovenator, who knows more about the stars than anyone. Sidney takes the family up to his favorite stargazing spot, "Starry Hill," and teaches the kids why the stars seem to move across the night sky. When the kids build their own version of a nest on the beach, below their actual family nest up on the cliff, they get the idea to turn their beach nest into a clubhouse. Shiny thinks that a clubhouse needs a club, and "the Nature Trackers" club is born! The kids decide to make their club about getting outside, getting into nature, and making new discoveries. The only problem is: which kid is in charge of the club?

Buddy, an adopted T. rex, wishes he knew more about his T. rex ancestors. So, Dad takes him and Tiny on the Dinosaur Train back to the early Cretaceous, to visit an ancestor: an earlier version of Tyrannosaurus rex called Raptorex. Rodney Raptorex is a kid who won't grow up to be as big as Buddy will, but the two boys find that they not only have a lot of differences, they have a lot in common, too. The kids are stuck cooped up in the nest for a long, rainy spell which leads to them fighting. Mom tells them that the rain has stopped enough that they can leave the nest but she gives them an assignment: to go find their own "calm space," where they can calm down enough to get along with each other again. It works - each kid finds something in nature that helps him or her to calm down and be friends again.

The Pteranodon family rides the Dinosaur Train - now with extra cars attached -- as it continues picking up more dinosaurs that are in the `Dinosaurs A to Z' song. The Pteranodon family reunites with some dinosaurs they've met before, and are introduced to species they've never met! The Pteranodon kids also learn about classification, and Don leads the way organizing the dinosaurs on the Train by their species, features, and size. The Pteranodon family is on the Dinosaur Train, now very crowded with all 26 dinosaurs mentioned in the `Dinosaurs A to Z' song. The Train has added more extra cars than it ever has, and there's even an additional engine to help pull the Train to Troodon Town. At Troodon Town, all the dinosaurs have fun at a picnic, and then Tiny leads the 26 different `A to Z' dinosaurs in a fun, rousing, and historic singing of the `Dinosaurs A to Z' song!

The Theropod Club - Buddy's Theropod Club meets with other dinosaurs that walk on two legs, eat meat, and have three toed feet. But Tiny feels left out until the Club invites her to join too! Surprise Party - Shiny, Tiny and Don throw a surprise party for Buddy on the Dinosaur Train and invite a whole caboose full of his friends!

While riding the Dinosaur Train with Buddy and Mom, Tiny gets the idea to gather all the dinosaurs in the `Dinosaurs A to Z' song for a picnic at Troodon Town. The Conductor agrees, and the Train starts picking up dinosaurs, as Tiny and Buddy help keep track of how many of the different species have come on board, and where they are on the dinosaur A to Z list. The Dinosaur Train continues traveling around the Mesozoic picking up more and more dinosaurs that are in the `Dinosaurs A to Z' song, on the way to a picnic at Troodon Town. As more train cars are added, and the rest of the Pteranodon family comes on board, Tiny and Mrs. Conductor team up to help keep order on the increasingly crowded Train.

After Shiny and Annie have a disagreement while exploring a local cave, Mom recalls a similar disagreement with her best friend when she was a kid, Tilly Pteranodon. Tilly happens to be visiting that day and the kids get to meet her for the first time. Mom and Tilly have a great reunion, yet they have very different memories of what their childhood disagreement was about-except that it was about an adventure in a swamp and a swamp-dwelling creature. To clear things up, Mom, Tilly, Tiny, Shiny, and Annie go back to Mom and Tilly's old neighborhood and the swamp. / Mom and Tilly (along with Tiny, Shiny, and Annie) return to their old neighborhood to explore the swamp where they used to play as kids and had a disagreement. The disagreement was about a swamp creature - was it a friend or foe? Mom and Tilly discover the creature, who is still there, is a friend! She is GOLDIE the GLOBIDENS, a marine creature who eats mostly shellfish. Mom recalls that she was scared of Goldie as a kid. and that that was the crux of her disagreement with Tilly. But, that was then, and now their friendship is patched up and strong again - a good example for Shiny and Annie.

Mom takes the kids on a playdate with Tank Triceratops to the desert, where they meet a distant relative of Tank's, an early Ceratopsian named Penelope Protoceratops. The Conductor points out that Penelope lives in a part of the world that gets a lot of earthquakes, and sure enough, the kids experience their first quake with Penelope. Mom and the Conductor have prepared the kids with excellent advice about what to do in an earthquake, so everyone does fine. When the family rides the Dinosaur Train, they learn that a new car has been added - a Nursery Car, with dozens of eggs in little, padded nests, attended by their expectant moms and dads. The kids watch the eggs hatch, and try to guess which hatchling goes with which dinosaur parent.

The Pteranodon family rides a special 'Night Train" to another part of the Cretaceous Time Period, where they meet a Troodontid "cousin" of the Conductor's, Sidney Sinovenator, who knows more about the stars than anyone. Sidney takes the family up to his favorite stargazing spot, "Starry Hill," and teaches the kids why the stars seem to move across the night sky. When the kids build their own version of a nest on the beach, below their actual family nest up on the cliff, they get the idea to turn their beach nest into a clubhouse. Shiny thinks that a clubhouse needs a club, and "the Nature Trackers" club is born! The kids decide to make their club about getting outside, getting into nature, and making new discoveries. The only problem is: which kid is in charge of the club?

The kids visit the Big Pond to attend the Biome Block Party. While attempting to win the leaf-necklace contest, Keenan Chirostemotes claims the Pteranodon sibs can't compete for the prize for "dinosaur" with the most leaves because they are not dinosaurs. This launches the kids into a song called "That's Not a Dinosaur", as all the non-dinosaurs sing their piece. In the end, the game rules are changed to include all creatures, even non-dinosaurs, in all the contests! The Nature Trackers go on a visit to the Big Pond, where Tiny hopes to see her favorite flowers. The Conductor tells her that if the kids gather seeds at the pond, they can bring them home and plant a garden full of those same flowers at the family nest! The kids all get into it, gathering seeds and bringing them home, where they plant a garden, and meet its new inhabitants, including Sammy, a friendly slug, who explains that slugs, spiders, and butterflies all help to make a garden complete.

The Old Spinosaurus & the Sea - Dad takes the kids on the Dinosaur Train to fish in a new place, where they meet a huge, grumpy old dinosaur, called a Spinosaurus, that doesn't want the kids in his Sea. Eventually the kids befriend him, and they teach each other their own unique way to catch fish. A Spiky Tail Tale - Buddy and Tiny help settle an argument between Morris Stegosaurus and Alvin Allosaurus, two very big dinosaurs - one with a very spiky tail, the other with a mouthful of sharp teeth.

The Pteranodon kids visit the Jurassic Time Period to meet Apollo Apatosaurus, a huge, long-necked, long-tailed dinosaur who likes adventure. Apollo loves to whip his long tail, and does so as he leads the kids on a pretend adventure to find a hard-to-reach tree with yummy, delicious leaves! Mrs. Pteranodon cleans out the clutter from the family nest and the kids are amazed at the pile of stuff - leaves, flower petals, pieces of wood, and shells. Tiny stops Mom from throwing out all the stuff, determined that she and Buddy, Tiny, and Don will find a use for it all. And, they do- the Pteranodon kids have fun making nature art on the beach using the items from nest!

When the weather has been extremely dry for several weeks, all the water holes at Pteranodon Terrace dry up. The Lambeosaurus family decides to move away in search of water, which upsets the kids. Dad and Mom decide to take the kids to the Big Pond on a camping trip, where they will wait out the drought and return home when it rains again. Don doesn't want to leave his home, even temporarily, and decides to perfect a "rain dance" that will make the rain return. Dad learns that he's been chosen to compete in the big annual Fishing Contest at the Big Misty Sea, and is one of three contestants. The whole family rides there on the Dinosaur Train to cheer Dad on. They learn that the contestants are Dad, the Old Spinosaurus, and Dad's childhood friend and rival, a huge raptor named Marco Megaraptor. The three all end up fighting over Chester, the legendary biggest fish in the Big Misty Sea.

The Pteranodon family goes under the sea again, to ride the Dinosaur Train Submarine - this time they go to meet Shoshana Shonisaurus, an enormous marine reptile that's something between a dolphin and a whale. Since Shoshana loves to dive down very deep, Shiny has a problem with following her down to the bottom of the sea. Shoshana kindly helps Shiny get over her fear of diving deep. When Buddy expresses his feelings about being adopted to Tiny and Mrs. Pteranodon, they tell him that he will always be a part of the Pteranodon family. Mom takes Buddy and Tiny to meet another adopted dinosaur kid named Sonny Sauroposeidon, a huge tall creature, now a part of tiny Mikey Microraptor's family. Buddy and Sonny bond over being adopted and knowing that they are both in adoptive families that are different species but still love and appreciate them.

The Old Spinosaurus & the Sea - Dad takes the kids on the Dinosaur Train to fish in a new place, where they meet a huge, grumpy old dinosaur, called a Spinosaurus, that doesn't want the kids in his Sea. Eventually the kids befriend him, and they teach each other their own unique way to catch fish. A Spiky Tail Tale - Buddy and Tiny help settle an argument between Morris Stegosaurus and Alvin Allosaurus, two very big dinosaurs - one with a very spiky tail, the other with a mouthful of sharp teeth.

Mom takes the kids on a playdate with Tank Triceratops to the desert, where they meet a distant relative of Tank's, an early Ceratopsian named Penelope Protoceratops. The Conductor points out that Penelope lives in a part of the world that gets a lot of earthquakes, and sure enough, the kids experience their first quake with Penelope. Mom and the Conductor have prepared the kids with excellent advice about what to do in an earthquake, so everyone does fine. When the family rides the Dinosaur Train, they learn that a new car has been added - a Nursery Car, with dozens of eggs in little, padded nests, attended by their expectant moms and dads. The kids watch the eggs hatch, and try to guess which hatchling goes with which dinosaur parent.

When the weather has been extremely dry for several weeks, all the water holes at Pteranodon Terrace dry up. The Lambeosaurus family decides to move away in search of water, which upsets the kids. Dad and Mom decide to take the kids to the Big Pond on a camping trip, where they will wait out the drought and return home when it rains again. Don doesn't want to leave his home, even temporarily, and decides to perfect a "rain dance" that will make the rain return. Dad learns that he's been chosen to compete in the big annual Fishing Contest at the Big Misty Sea, and is one of three contestants. The whole family rides there on the Dinosaur Train to cheer Dad on. They learn that the contestants are Dad, the Old Spinosaurus, and Dad's childhood friend and rival, a huge raptor named Marco Megaraptor. The three all end up fighting over Chester, the legendary biggest fish in the Big Misty Sea.

The Pteranodon kids visit the Jurassic Time Period to meet Apollo Apatosaurus, a huge, long-necked, long-tailed dinosaur who likes adventure. Apollo loves to whip his long tail, and does so as he leads the kids on a pretend adventure to find a hard-to-reach tree with yummy, delicious leaves! Mrs. Pteranodon cleans out the clutter from the family nest and the kids are amazed at the pile of stuff - leaves, flower petals, pieces of wood, and shells. Tiny stops Mom from throwing out all the stuff, determined that she and Buddy, Tiny, and Don will find a use for it all. And, they do- the Pteranodon kids have fun making nature art on the beach using the items from nest!

The Conductor's nephew Gilbert has been taking Conductor courses at the Troodon Academy, and has finally graduated to Cadet Conductor! The kids are thrilled - will Gilbert get his own Dinosaur Train to conduct? The answer comes when the Conductor gets sick and can't do his job, including calling out the station stops! He appoints new Cadet Gilbert to run the Dinosaur Train until he gets his voice back. The strain of running the train by himself wears heavily on Gilbert, and our kids step in to help him run it. Gilbert learns it takes a team to get the job done and keep the train running. There's big relief when the real Conductor gets his voice back and goes back to running things. No one's more relieved than Gilbert! / Our kids want their own clubhouse, separate from the family nest. They try out several locations - Tiny's Tiny Place, Dad's Thinking Tree, a large Don-made hole - but none of them are the right fit. Eventually, the kids (with the help of Mom and Dad), build their own clubhouse using natural materials.

The Pteranodon kids have a Nature Trackers adventure when they meet Denise Diplodocus, a super-long, super big dinosaur. At first the kids mistake Denise's neck for a snake, and tail as a bridge. Later, Denise amazes the kids, telling them how hard it is for her to raise up her long, heavy neck. Shiny and the others help her raise her neck higher than normal just once, but it feels better for Denise to keep closer to the ground and low-lying trees. Shiny is nervous about Gilbert's impending visit to Pteranodon Terrace. She goes into a cleaning frenzy, wanting everything to look perfect, and her siblings to act perfectly. When Gilbert arrives, everyone starts having fun except Shiny who feels ignored. Soon Gilbert and the other kids persuade Shiny to join them, and they all eat, play, and laugh together.

The long-awaited rains finally return to Pteranodon Terrace, but grow into a huge rainstorm that grows even bigger - into a hurricane! Dad hasn't seen it blow like this since he was a kid. They seek shelter, and Don discovers an entrance to a cave below their nest, where not only the Pteranodons, but also their other neighbors, the Lambeorsaurus family and Cindy Cimolestes, all take shelter for the night. In the morning, the storm has passed, but everyone must pitch in to rebuild their various nests. The family is cleaning up the mess left over from the hurricane, and discover that a raft of logs has washed up two refugees from across the Western Interior Sea - a turtle named Aidan Adocus, and a small mammal named Tommy Ptilodus. Our family learns of their adventure, crossing the sea in the storm, and washing up at Pteranodon Terrace. They decide to take their new friends to the Dinosaur Train, and ride back with them to their home in Appalachia.

Buddy and Don stumble upon a mystery when they find unhatched eggs on their beach, The mystery grows when some of the eggs are stolen. Don and Buddy become detectives and suspect that maybe Tiny, Shiny, or other friends may be stealing the eggs. They're not. Soon, all the kids join in to solve the mystery, as they figure out that the eggs belong to an over-protective, caring mom named Olivia Oviraptor who is just trying to keep her eggs safe. Buddy, Tiny, Shiny, and Don have fun spending a special day with their retired Grandma and Grandpa at their cliffside nest. The kids get to see things from their Dad's childhood nature collection, and afterwards they play games and fish with Grandma and Grandpa.

Shiny gets over her fear of snakes when Tiny challenges the Nature Trackers to meet the ultimate snake: the Sanajeh, a huge Cretaceous snake from what is now India. Dad takes the kids on the Dinosaur Train to find Sana Sanajeh, who may be huge, but turns out to be quite friendly. Once Shiny and Sana become friends, Shiny returns home with the knowledge that snakes aren't scary - they're just another part of nature! Tiny is horrified when her favorite buttercups all wilt, so Mom takes her and the family to the Big Pond, where she remembers seeing a whole lot of buttercups in bloom. On the way there, the Conductor gives the kids a visual lesson in "Nature's Life Cycle," explaining how a flower grows, blossoms, then wilts, and returns its seeds to the ground, to start the cycle all over again. Tiny finds her flowers at the Big Pond, both blooming and wilting, and can see nature's life cycle in action.

Buddy, Tiny, and Mom visit their very large sauropod friend, Arnie Argentinosaurus, and his dad. Arnie has grown bigger since our kids have seen him and is now too big to ride on the Dinosaur Train anymore. Tiny and Buddy arrange with Mr. Conductor for Arnie to be the first big dinosaur to ride on the newest Dinosaur Train car - the flatbed car! Mr. Pteranodon and Mr. Lambeosaurus take all the kids to see a field of geysers - holes in the ground that hot water shoots out from! At the same time, Mrs. Pteranodon and Mrs. Lambeosaurus are relaxing nearby in soothing pools of warm water, called hot springs. In the end, the kids love seeing the geysers and then joining the Moms in their hot springs, while accidentally surprising Mr. Conductor who is secretly trying to relax in his own private hot spring pool!

When a forest fire comes to woods not far from the family nest at Pteranodon Terrace, the family takes the Dinosaur Train to visit a nearby area where a fire has already been, and the Conductor leads the kids on a Nature Tracker hike through the woods to see how new life is growing back - even after the forest fire's devastation. Buddy and Tiny ride the Dinosaur Train for a playdate with their old friend Petey Peteinosaurus, and learn that the train has added a new Aviary Car, for their various flying passengers. Suddenly, they are joined by a lost bird named Judy Jehelornis, who was displaced by the recent forest fires, and can't remember where her home is. Buddy, Tiny, and Petey act as detectives to figure out from clues where Judy's home is, and the Conductor makes sure she's brought safely home on the train.

Team Pteranodon travels to Dienosuchas Swamp to meet Deanna Dienosuchas, a 40 foot crocodile with many big teeth, and a crabby attitude. Tiny leads the way to warm up Deanna who turns out to be more friendly and less scary than our kids imagined. The Pteranodon kids have special visitors - their Grandma and Grandpa! The kids delight in realizing they share similar traits with their grandparents (laughs, expressions, and interests), and love showing Grandma and Grandpa around the nest area and playing some games they all like.

When Don is told he can't dig any more holes around the nest, he complains that he needs his own day just for digging holes-a hole-iday! The kids make up an imaginary holiday just for Don and recruit the Oryctodromeus to help dig all the holes Don could ever hope for. / The Pteranodon kids meet a new, small mammal friend, Adele Alphadon, and introduce her and their Big Pond friend, Cindy Cimolestes, to a new concept -- that not all Mesozoic creatures are dinosaurs. And that includes the Pteranodons! They live in a diverse world.

The Pteranodon kids and Dad get the idea to travel around on the Dinosaur Train and meet some of the biggest dinosaurs. They even sing a song, `The Biggest Dinosaurs', before meeting Allie Alamosaurus, an enormous, long-necked, plant eating sauropod who is very friendly. Allie explains that her huge, strong legs hardly bend at all, but she can still have fun playing games with the kids, and teaching them some of her favorites! Dad takes the Pteranodon kids on an overnight camping trip where they watch both a sunrise and sunset, learning that the sun rises in the east and sets in the west. The kids also find out more about nocturnal (night-active) animals, and diurnal (day-active) animals.

When a forest fire comes to woods not far from the family nest at Pteranodon Terrace, the family takes the Dinosaur Train to visit a nearby area where a fire has already been, and the Conductor leads the kids on a Nature Tracker hike through the woods to see how new life is growing back - even after the forest fire's devastation. Buddy and Tiny ride the Dinosaur Train for a playdate with their old friend Petey Peteinosaurus, and learn that the train has added a new Aviary Car, for their various flying passengers. Suddenly, they are joined by a lost bird named Judy Jehelornis, who was displaced by the recent forest fires, and can't remember where her home is. Buddy, Tiny, and Petey act as detectives to figure out from clues where Judy's home is, and the Conductor makes sure she's brought safely home on the train.

The Pteranodon kids have a Nature Trackers adventure when they meet Denise Diplodocus, a super-long, super big dinosaur. At first the kids mistake Denise's neck for a snake, and tail as a bridge. Later, Denise amazes the kids, telling them how hard it is for her to raise up her long, heavy neck. Shiny and the others help her raise her neck higher than normal just once, but it feels better for Denise to keep closer to the ground and low-lying trees. Shiny is nervous about Gilbert's impending visit to Pteranodon Terrace. She goes into a cleaning frenzy, wanting everything to look perfect, and her siblings to act perfectly. When Gilbert arrives, everyone starts having fun except Shiny who feels ignored. Soon Gilbert and the other kids persuade Shiny to join them, and they all eat, play, and laugh together.

When Don is told he can't dig any more holes around the nest, he complains that he needs his own day just for digging holes-a hole-iday! The kids make up an imaginary holiday just for Don and recruit the Oryctodromeus to help dig all the holes Don could ever hope for. / The Pteranodon kids meet a new, small mammal friend, Adele Alphadon, and introduce her and their Big Pond friend, Cindy Cimolestes, to a new concept -- that not all Mesozoic creatures are dinosaurs. And that includes the Pteranodons! They live in a diverse world.

Buddy, Tiny, and Mom visit their very large sauropod friend, Arnie Argentinosaurus, and his dad. Arnie has grown bigger since our kids have seen him and is now too big to ride on the Dinosaur Train anymore. Tiny and Buddy arrange with Mr. Conductor for Arnie to be the first big dinosaur to ride on the newest Dinosaur Train car - the flatbed car! Mr. Pteranodon and Mr. Lambeosaurus take all the kids to see a field of geysers - holes in the ground that hot water shoots out from! At the same time, Mrs. Pteranodon and Mrs. Lambeosaurus are relaxing nearby in soothing pools of warm water, called hot springs. In the end, the kids love seeing the geysers and then joining the Moms in their hot springs, while accidentally surprising Mr. Conductor who is secretly trying to relax in his own private hot spring pool!

The Pteranodon Family, with the Conductor, have raced on land a few times and in the air against Thurston Troodon, but have never raced in the water! So, after Thurston shows up in his own souped-up, "state-of-the-art" submarine, the challenge is on! Buddy, Tiny, and Mrs. Pteranodon are with Mr. Conductor in the Dinosaur Train Submarine, racing across the great Western Interior Sea against Thurston, Shiny, Don, and Mr. Pteranodon! On the way, they meet a new species of marine reptile, Leo the Liopleuridon, who helps Thurston a little too much in the race. / but he doesn't have wings like his siblings do! For 4 seasons, Buddy has run along while his siblings fly, although sometimes they carry him. When Shiny complains that Buddy is getting too big to carry around Pteranodon Terrace, Buddy feels sad for a little while, then decides to do something about it - build himself his own set of wings! Our Pteranodon kids love this, and they get to work designing and engineering, starting with funny homemade versions, a try-and-fail sequence with some hilarious crashes and some success, leading up to a cool, Leonardo-esque set of mechanical wings. The wings work! Buddy can fly with his siblings, and they have a triumphant flying session. But in the end, Buddy misses being carried. "Who am I kidding? I'm not a Pteranodon! I'm a T. rex who really loves to fly!" Buddy goes happily back to the status quo. And even better, he knows what to do with his mechanical wings - he gives them to the Pteranodon kid with a stunted wing. We end with them all flying together, the neighbor kid joyfully flying Buddy's mechanical wings.

The Pteranodon Family, with the Conductor, have raced on land a few times and in the air against Thurston Troodon, but have never raced in the water! So, after Thurston shows up in his own souped-up, "state-of-the-art" submarine, the challenge is on! Buddy, Tiny, and Mrs. Pteranodon are with Mr. Conductor in the Dinosaur Train Submarine, racing across the great Western Interior Sea against Thurston, Shiny, Don, and Mr. Pteranodon! On the way, they meet a new species of marine reptile, Leo the Liopleuridon, who helps Thurston a little too much in the race. / but he doesn't have wings like his siblings do! For 4 seasons, Buddy has run along while his siblings fly, although sometimes they carry him. When Shiny complains that Buddy is getting too big to carry around Pteranodon Terrace, Buddy feels sad for a little while, then decides to do something about it - build himself his own set of wings! Our Pteranodon kids love this, and they get to work designing and engineering, starting with funny homemade versions, a try-and-fail sequence with some hilarious crashes and some success, leading up to a cool, Leonardo-esque set of mechanical wings. The wings work! Buddy can fly with his siblings, and they have a triumphant flying session. But in the end, Buddy misses being carried. "Who am I kidding? I'm not a Pteranodon! I'm a T. rex who really loves to fly!" Buddy goes happily back to the status quo. And even better, he knows what to do with his mechanical wings - he gives them to the Pteranodon kid with a stunted wing. We end with them all flying together, the neighbor kid joyfully flying Buddy's mechanical wings.

King and Crystal Cryolophosaurus are back together in their on-again, off-again rock'n'roll relationship. The Conductor shows up to extend an offer to play the Red Rock Ampitheater in Laramidia (the Cretaceous mini-continent that is now the Rocky Mountains). Our Pteranodon Family is visiting King and Crystal in Jurassic Antarctica when they get the big news. Crystal is all for it - this concert is the big time! But King is hesitant, worried about performing because of stage fright. It takes emotional support from the Pteranodon kids to get King to perform, plus they help him get Crystal an anniversary gift. In the end, King and Crystal rock the Red Rocks and the festival crowd with their new hit song, "Red Rockin' the Cretaceous." / When Dad's good friend from their teenage years -- a pterosaur called Nyctosaurus -- comes for a long overdue visit, he's fun at first. Being a professional flyer, Nick thinks about flying 24/7, and teaches the kids exciting new flying and diving techniques for a couple of days. The kids need a break and end up showing Nick what they like to play - other activities besides flying. Nick appreciates that and invites the family to his upcoming big flying race!