"Nest Swap" - The Pteranodon Family decides to take a little vacation and swap nests with Larry's friends: a family of pterosaurs (Nemicolopterus, to be exact). But when the Pteranodon Family arrives at the Nemicolopterus nest, they realize that the Nemicolopterus Family is MUCH smaller than them, so everything is smaller: the Pteranodon Family doesn't even fit in their nest! Can the family make do, try something new, and still have a good time? Educational Objectives: The Nemicolopterous was a small, toothless pterosaur that lived in the forests of the early cretaceous. Pterosaur diversity included a range in body size, head and body shape, presence and absence of teeth, long tails, preferred habitat, and preferred diet. "The Herd is the Word" - Tank Triceratops is really excited to show Buddy, Tiny, Shiny, and Don his favorite picnic spot, but when they arrive, the spot is overrun with a whole herd of Triceratops. Tank and the kids try to find another place with a little more privacy (and a lot less Triceratopses), but no matter where they go, the herd follows them. Will Tank be able to find a quiet spot without the herd, or does the herd have a good reason for following Tank around? Educational Objectives: Big-bodied herbivores often form large groups, or "herds," and do so as a strategy to detect and deter predators.

The Pteranodon kids and their dome-headed friend Spikey Stygimoloch meet a brother and sister, Patrick and Pamela Pachycephalosaurus, two dinosaurs with enormous dome heads. Spikey bonds with the Pachycephalosaurus. Patrick and Pamela are athletes who invite our kids, Mom, and Spikey along to watch them use their impressive dome heads to play a volleyball type sport called, Dome Ball. Don has a large collection of things he's found in nature, but he's missing one hard-to-locate item - amber. On the Dinosaur Train, Don and the other Pteranodon kids find out that Gilbert is also looking for amber. At Amber Arroyo caves, Don and Gilbert separately search for and find amber, eventually bonding over their discoveries.

"Nest Swap" - The Pteranodon Family decides to take a little vacation and swap nests with Larry's friends: a family of pterosaurs (Nemicolopterus, to be exact). But when the Pteranodon Family arrives at the Nemicolopterus nest, they realize that the Nemicolopterus Family is MUCH smaller than them, so everything is smaller: the Pteranodon Family doesn't even fit in their nest! Can the family make do, try something new, and still have a good time? Educational Objectives: The Nemicolopterous was a small, toothless pterosaur that lived in the forests of the early cretaceous. Pterosaur diversity included a range in body size, head and body shape, presence and absence of teeth, long tails, preferred habitat, and preferred diet. "The Herd is the Word" - Tank Triceratops is really excited to show Buddy, Tiny, Shiny, and Don his favorite picnic spot, but when they arrive, the spot is overrun with a whole herd of Triceratops. Tank and the kids try to find another place with a little more privacy (and a lot less Triceratopses), but no matter where they go, the herd follows them. Will Tank be able to find a quiet spot without the herd, or does the herd have a good reason for following Tank around? Educational Objectives: Big-bodied herbivores often form large groups, or "herds," and do so as a strategy to detect and deter predators.

"What's at the Center of the Earth? Layers!" -- The Conductor takes the Pteranodon family on a very special journey on a new invention - the Drill Engine Train - in search of the perfect spot for a new Underground Dinosaur Train Station! Don is THRILLED to be venturing into the BIGGEST HOLE THE EARTH HAS EVER KNOWN! Shiny is nervous to be underground, until they meet a new friend (a Mesozoic Mole named NATASHA NECROLESTES), who teaches them all about the different layers of the Earth. Story A Educational Objectives: The Earth has several layers - the crust (a thin, solid outermost layer), the mantle (the deeper, denser layer), and the core (the super dense center that's as hot as the sun). Also, a Necrolestes is a type of Mesozoic mole. "What's at the Center of the Earth? Fossils!" -- As the Pteranodon Family continues their journey underground, Don accidentally breaks Buddy's trilobite fossil (the oldest fossil in his collection!) When the search for another trilobite fossil turns up empty, their new friend Natasha Necrolestes takes them to Fossil Alley, where the kids learn that the older the fossil, the deeper underground it is. Story B Educational Objectives: You don't usually find fossils from different time periods mixed together in the Earth. The Law of Superposition means that when we see a stack of rock layers, the deeper you go into the Earth, the older the rocks and fossils you find

"Stop and Smell the Flowers" - Mom takes Tiny, Buddy, and Don on a super secret daytrip to Qianzhousaurus Pond, where they meet Quentin Qianzhousaurus - a Tyrannosaur with similar features to Buddy, except for one major thing - Quentin has a long, thin snout covered in tiny horns! The kids think that Quentin's long snout gives him a super smelling sense, but after a series of tests, they realize that he and Buddy have the same sniffing power. Can Quentin and Buddy's super sniffers solve the mystery of Mom's secret daytrip? Educational Objectives: Qianzhousaurus was a Tyrannosaur from the late cretaceous with a long, narrow snout (covered in tiny horns). Tyrannosaurs came in a variety of shapes and sizes. Qianzhousaurus probably hunted much smaller prey than its super strong- jawed cousin. T. Rex. "Moms' Campout" - Mrs. Pteranodon organizes a "Moms' Campout" with other moms and kids in the neighborhood. While on the way to the campout, Mr. Conductor challenges the kids to make a real "nature connection" by creating games that push them to look at nature from a different point of view. Educational Objectives: You can't appreciate nature just by looking at it. You need to dig in and be a part of it: splashing, climbing, getting dirty, and looking at things in a whole new way. Forming a "Nature Connection" (that is, fostering a bond with the natural world) is a hands-on, full body, multisensory activity that is essential for a healthy childhood.

When Mr. Pteranodon and Larry go out to the Big Pond to find some red platanoids for the Winter Solstice Celebration, they accidentally miss the last train home. Will Larry and Mr. Pteranodon stop bickering long enough to figure out a way home, or will they get stranded in the middle of nowhere and miss the family Winter Solstice Celebration? Educational Objective: The Winter Solstice is the shortest day of the year.

"Rollin' on the Riverboat: Part One" - The whole Pteranodon Family takes a rollicking adventure on the Dinosaur Train Riverboat! Buddy and Don vow to spend every minute together, but while Buddy wants to spend all his time investigating the creatures on the river, Don wants to spend all his time playing games and investigating the buffet. Can they come to some kind of agreement? "Rollin' on the Riverboat: Part Two" - While still rolling down the river on the Dinosaur Train Riverboat, Grandpa Pteranodon tells Buddy about the Legend of Admiral Globidens - a HUGE Mososaur that supposedly lives on the river, but no one has ever seen. Buddy enlists Dad and Tiny's help to look for Admiral Globidens, but they can't seem to find him. Does Admiral Globidens really exist, or is he just a figment of someone's imagination? Educational Objectives: River ecosystems tend to be lushly vegetated and full of diverse life forms because of the constant presence of water and the diversity of habitats (i.e., aquatic and land-based). Also, a Globidens was a large mososaur from the late cretaceous that lived in the water and used its large, globe-shaped teeth to eat turtles and other large shellfish.

"Stop and Smell the Flowers" - Mom takes Tiny, Buddy, and Don on a super secret daytrip to Qianzhousaurus Pond, where they meet Quentin Qianzhousaurus - a Tyrannosaur with similar features to Buddy, except for one major thing - Quentin has a long, thin snout covered in tiny horns! The kids think that Quentin's long snout gives him a super smelling sense, but after a series of tests, they realize that he and Buddy have the same sniffing power. Can Quentin and Buddy's super sniffers solve the mystery of Mom's secret daytrip? Educational Objectives: Qianzhousaurus was a Tyrannosaur from the late cretaceous with a long, narrow snout (covered in tiny horns). Tyrannosaurs came in a variety of shapes and sizes. Qianzhousaurus probably hunted much smaller prey than its super strong- jawed cousin. T. Rex. "Moms' Campout" - Mrs. Pteranodon organizes a "Moms' Campout" with other moms and kids in the neighborhood. While on the way to the campout, Mr. Conductor challenges the kids to make a real "nature connection" by creating games that push them to look at nature from a different point of view. Educational Objectives: You can't appreciate nature just by looking at it. You need to dig in and be a part of it: splashing, climbing, getting dirty, and looking at things in a whole new way. Forming a "Nature Connection" (that is, fostering a bond with the natural world) is a hands-on, full body, multisensory activity that is essential for a healthy childhood.

Our Pteranodon family is on the beach watching small eggs hatch and baby Archelon turtles emerge, and start to swim away. Our family and Mr. Conductor get into the Dinosaur Train Submarine and follow the baby Archelons who discover their own facts of nature - that their mother doesn't stay with them after they're born, and that they will grow up to be giant-sized sea turtles. Tiny and Buddy find out that a newer train will be riding the same tracks as the Dinosaur Train. The new train is called the Rocket Train, and its conductor is named Thurston Troodon, who was a former classmate and rival of Mr. Conductor. Thurston is very confident and boasts that the Rocket Train is newer, better, and faster than the "old Dinosaur Train." Mrs. Troodon, Thurston, and Mr. Conductor's old teacher, suggests a friendly train race. With Tiny and Buddy on board, the "old" Dinosaur Train ends up helping out Thurston and the new Rocket Train after it breaks down.

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?

"Where Have All the Lizards Gone?" - The Conductor takes the Pteranodon Family for a special trip to Lizard Island, where they discover that it's been overrun by plants and bugs, and there are few precious lizards left. The Conductor concludes that the Changyuraptor Family (that he dropped off there awhile ago, and has since multiplied) has been eating all the lizards and throwing the entire ecosystem out of balance. Can the Pteranodon Family and Mr. Conductor convince the Changyuraptor Family to leave their home in order to get the island ecosystem back in balance? Educational Objectives: Ecosystems thrive only when all the plants and animals are in balance with one another. But too much of one thing, and not enough of another, can have disastrous consequences. "Conductor's Sleepover" - With a hurricane looming, the Pteranodon Family convinces the Conductor to leave his train for the night and come with them to the safety of their hurricane shelter (a large, underground cave). But the Conductor has a hard time getting comfortable away from his train. Can the family and the Conductor pull together and help a family of beached Ichthyosaurs back into the ocean after the hurricane leaves them beached on the shore? Educational Objectives: Hurricanes (and other storms) often have major effects on both ocean and land animals, causing animals to change their behaviors, and sometimes resulting in devastation of coastal ecosystems.

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 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"!

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.

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!

"Rollin' on the Riverboat: Part One" - The whole Pteranodon Family takes a rollicking adventure on the Dinosaur Train Riverboat! Buddy and Don vow to spend every minute together, but while Buddy wants to spend all his time investigating the creatures on the river, Don wants to spend all his time playing games and investigating the buffet. Can they come to some kind of agreement? "Rollin' on the Riverboat: Part Two" - While still rolling down the river on the Dinosaur Train Riverboat, Grandpa Pteranodon tells Buddy about the Legend of Admiral Globidens - a HUGE Mososaur that supposedly lives on the river, but no one has ever seen. Buddy enlists Dad and Tiny's help to look for Admiral Globidens, but they can't seem to find him. Does Admiral Globidens really exist, or is he just a figment of someone's imagination? Educational Objectives: River ecosystems tend to be lushly vegetated and full of diverse life forms because of the constant presence of water and the diversity of habitats (i.e., aquatic and land-based). Also, a Globidens was a large mososaur from the late cretaceous that lived in the water and used its large, globe-shaped teeth to eat turtles and other large shellfish.

Dad takes the kids on a special Night Train to Troodon Town, where the Troodons have decorated their Roundhouse into a "haunted house" for a spooky party. The kids end up meeting a strange new nocturnal creature - a mammal named Vlad Volaticotherium, who was hiding in the roundhouse trying to get some sleep. The Pteranodon family learns more about the customs of their neighbors, the Lambeosaurus family, when they are invited for the first time to accompany them to the Big Pond to celebrate "Gourd Day" - a kind of Mesozoic Halloween. The kids see their first pumpkins, and Larry Lambeosaurus even shows our family how to hollow them out and carve faces into them.

"Crystal and King Benefit Concert: Part One" - When Crystal and the King go for a trip to the Big Pond, they learn that it's being recklessly overfished! They enlist the help of the Pteranodon Family to try to spread the word that if the dinosaurs and pterosaurs aren't more careful, the Big Pond will run out of fish to eat. But when Crystal realizes that nothing they're doing is actually raising awareness of the issue, she decides to organize a HUGE benefit concert, and everyone agrees to pitch in and help (as long as the King doesn't have to perform)! "Crystal and King Benefit Concert: Part Two" - The "Don't Overfish the Big Pond" Benefit Concert is underway, and it's a HUGE success! But because there's so much to organize, Crystal never finds the time to rehearse her big finale - so when it's time for her to go onstage, she experiences something she's never experienced before - stage fright! Can the kids help Crystal get over her stage fright and get her back onstage, or will the King have to come out of "performance retirement" to help her out? Educational Objectives: Overfishing generally results in a dramatic depletion in the total amount of fish (i.e., biomass). Also, overfishing often causes smaller fish (the prey species of larger fish) to increase in number as the larger predators are removed. If aquatic ecosystems are given a chance to rebound, they often will, as long as the numbers of fish have not been depleted too far.

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.

Dad takes the kids on a special Night Train to Troodon Town, where the Troodons have decorated their Roundhouse into a "haunted house" for a spooky party. The kids end up meeting a strange new nocturnal creature - a mammal named Vlad Volaticotherium, who was hiding in the roundhouse trying to get some sleep. The Pteranodon family learns more about the customs of their neighbors, the Lambeosaurus family, when they are invited for the first time to accompany them to the Big Pond to celebrate "Gourd Day" - a kind of Mesozoic Halloween. The kids see their first pumpkins, and Larry Lambeosaurus even shows our family how to hollow them out and carve faces into them.

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 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.

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!

"Spooky Tree" - Shiny invites Annie Tyrannosaurus to Pteranodon Terrace for a sleepover, but all Annie wants to do is investigate the "spooky tree" that Don says "comes alive at night." All Shiny wants to do is stay as far away from the tree as possible. Can the kids get to the bottom of the mysterious tree, and figure out if it really comes alive at night? Educational Objectives: A wide variety of organisms produce light inside their bodies, and this light can be used for a variety of purposes. Some creatures have a chemical reaction in their bodies called "bio-luminescence," which causes them to glow. This bioluminescence can serve different functions, including camouflage, luring of prey, mimicry of other animals, and warnings for potential predators that the glowing critter is unpalatable. "Spinosaurus Super Model" - When Don stumbles across a stick that looks EXACTLY like Old Spinosaurus, he's determined to have the grumpy old dinosaur pose for his sculpture (so he can get the Spinosaurus's features exactly right). But when they arrive at Old Spinosaurus's home, he makes it clear that there's no way he's posing for anything. Can Don convince Old Spinosaurus to pose for his sculpture, or will Don have to come up with another plan? Educational Objectives: Spinosaurus, a gigantic theropod from the Cretaceous period, was the world's largest land carnivore, and the only Mesozoic dinosaur truly built for living in the water versus on land (as opposed to going into the water to cool off, for example).

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!

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 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.

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.

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 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.

Dad takes the kids on a special Night Train to Troodon Town, where the Troodons have decorated their Roundhouse into a "haunted house" for a spooky party. The kids end up meeting a strange new nocturnal creature - a mammal named Vlad Volaticotherium, who was hiding in the roundhouse trying to get some sleep. The Pteranodon family learns more about the customs of their neighbors, the Lambeosaurus family, when they are invited for the first time to accompany them to the Big Pond to celebrate "Gourd Day" - a kind of Mesozoic Halloween. The kids see their first pumpkins, and Larry Lambeosaurus even shows our family how to hollow them out and carve faces into them.

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.

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.

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.

"Spooky Tree" - Shiny invites Annie Tyrannosaurus to Pteranodon Terrace for a sleepover, but all Annie wants to do is investigate the "spooky tree" that Don says "comes alive at night." All Shiny wants to do is stay as far away from the tree as possible. Can the kids get to the bottom of the mysterious tree, and figure out if it really comes alive at night? Educational Objectives: A wide variety of organisms produce light inside their bodies, and this light can be used for a variety of purposes. Some creatures have a chemical reaction in their bodies called "bio-luminescence," which causes them to glow. This bioluminescence can serve different functions, including camouflage, luring of prey, mimicry of other animals, and warnings for potential predators that the glowing critter is unpalatable. "Spinosaurus Super Model" - When Don stumbles across a stick that looks EXACTLY like Old Spinosaurus, he's determined to have the grumpy old dinosaur pose for his sculpture (so he can get the Spinosaurus's features exactly right). But when they arrive at Old Spinosaurus's home, he makes it clear that there's no way he's posing for anything. Can Don convince Old Spinosaurus to pose for his sculpture, or will Don have to come up with another plan? Educational Objectives: Spinosaurus, a gigantic theropod from the Cretaceous period, was the world's largest land carnivore, and the only Mesozoic dinosaur truly built for living in the water versus on land (as opposed to going into the water to cool off, for example).

Dad takes the kids on a special Night Train to Troodon Town, where the Troodons have decorated their Roundhouse into a "haunted house" for a spooky party. The kids end up meeting a strange new nocturnal creature - a mammal named Vlad Volaticotherium, who was hiding in the roundhouse trying to get some sleep. The Pteranodon family learns more about the customs of their neighbors, the Lambeosaurus family, when they are invited for the first time to accompany them to the Big Pond to celebrate "Gourd Day" - a kind of Mesozoic Halloween. The kids see their first pumpkins, and Larry Lambeosaurus even shows our family how to hollow them out and carve faces into them.

"Spooky Tree" - Shiny invites Annie Tyrannosaurus to Pteranodon Terrace for a sleepover, but all Annie wants to do is investigate the "spooky tree" that Don says "comes alive at night." All Shiny wants to do is stay as far away from the tree as possible. Can the kids get to the bottom of the mysterious tree, and figure out if it really comes alive at night? Educational Objectives: A wide variety of organisms produce light inside their bodies, and this light can be used for a variety of purposes. Some creatures have a chemical reaction in their bodies called "bio-luminescence," which causes them to glow. This bioluminescence can serve different functions, including camouflage, luring of prey, mimicry of other animals, and warnings for potential predators that the glowing critter is unpalatable. "Spinosaurus Super Model" - When Don stumbles across a stick that looks EXACTLY like Old Spinosaurus, he's determined to have the grumpy old dinosaur pose for his sculpture (so he can get the Spinosaurus's features exactly right). But when they arrive at Old Spinosaurus's home, he makes it clear that there's no way he's posing for anything. Can Don convince Old Spinosaurus to pose for his sculpture, or will Don have to come up with another plan? Educational Objectives: Spinosaurus, a gigantic theropod from the Cretaceous period, was the world's largest land carnivore, and the only Mesozoic dinosaur truly built for living in the water versus on land (as opposed to going into the water to cool off, for example).