Valley of the Stygimolochs - Buddy wonders if he'll grow horns when he gets older, so Mrs. Pteranodon takes him to visit some dinosaurs called Stygimoloch, who have really impressive horns.Tiny Loves Fish - After Mr. Pteranodon teaches the kids his fishing method, Buddy and Tiny work together as a team to catch fish in the Big Pond.

The Call of the Wild Corythosaurus - The family surprises Mom for her birthday with a trip to a concert given by Cory and her family of Corythosaurus, who play music through the crests on their heads.Triceratops for Lunch - Our Pteranodon family eats lunch with their friend Tank Triceratops and discover that he and his family are all plant-eaters, with great leaf-eating teeth and giant appetites!

One Smart Dinosaur - Buddy and Tiny want to test their memory, so they ride the Dinosaur Train and spend some time with the Conductor, since he's a Troodon with a great memory. The kids get to meet the Conductor's mom, Mrs. Conductor.Petey The Peteinosaurus - Buddy and Tiny ride the Dinosaur Train to meet Petey Peteinosaurus, a "flying lizard," who is fun, funny, and friendly, and has some features similar to both Buddy and Tiny!

Fast Friends - Buddy, Tiny, and Mom ride the Dinosaur Train to meet Oren and Ollie Ornithomimus, some of the fastest dinosaurs ever! Our kids love meeting the fast-moving and fast-talking twins.T. rex Teeth - When Buddy loses a tooth, Mom takes him to Rexville to ask his Tyrannosaurus friends all about T. rex teeth. They explain that he'll grow new teeth to replace the old ones.

Laura the Giganotosaurus - Buddy spends time with Laura Giganotosaurus, a large dinosaur who always rides the Dinosaur Train and, like Buddy, is a three-toed theropod! Buddy also discovers that Laura is an avid bird-watcher.Dinosaur Poop! - Buddy and Tiny learn that all creatures poop, even really big dinosaurs.

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 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.

One Big Dinosaur - Tiny and Buddy visit a dinosaur family called Argentinosaurus, some of the biggest land creatures ever! The kids find out there are great things about being really big, and that it's also great being their own size.Play Date with Annie - Buddy is excited that his friend Annie Tyrannosaurus is coming to the Pteranodon nest to visit and play with them. After Tiny feels left out, Buddy and Annie show her that they can all be friends!

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!

The kids happen upon the legendary giant bullfrog, Benny Beelzebufo, who they once visited on his home river. Benny got off the Train at the wrong stop and is in new territory - the Pteranodon Family neighborhood. The kids take him around and show him fun places and play games with him. Then, he gets worried - he has to be home for dinner! A problem with the Dinosaur Train means our Pteranodon kids and Dad - with the help of good friend, Pauline Paleobatrachus, a tiny frog - take Benny on a trek over land and on water, and get him home to his family. Benny is thankful and loved his unexpected adventure with the Pteranodons. / When the kids all went to Junior Conductor's Academy, they met Dennis Deinocheirus, a brilliant and autistic theropod who was the first dinosaur kid who knew more dino facts than Buddy! Now, Dennis fulfills a promise and has come to visit Buddy and the kids at Pteranodon Terrace. Buddy, Tiny, Shiny, and Don play host to Dennis and are very sensitive to his needs, manner, and being out of his comfort zone. Dennis ends up having fun playing new games with the kids, digging holes, and playing on the pretend "Dinosaur Train" rocks.

Armored Like an Ankylosaurus - The kids travel on the Dinosaur Train with Mr. Pteranodon to see his hero, Hank Ankylosaurus, play a game of Dinoball. Afterwards, they even get to play with Hank and learn what it's like to be a dinosaur that's covered with armored plates and a mighty club for a tail.Campout! - Our Pteranodon family goes to the Big Pond for their first overnight camp out and meets a small frog with a big voice.

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.