Ms. Carver's class gets a new addition in the form of mystery eggs, and Dan just knows one of them is a dinosaur egg! When Trek and Tristan find a bone in the schoolyard, Dan uses a papier-mâché skull in Mrs. Hahn's art class to figure out if it came from the Stygimoloch.

Dan makes a mask in Mrs. Hahn's art class to get closer to the Edmontosaurus herd but he needs Angie's help too. Dan uses a French horn to communicate with a couple Corythosauruses.

A routine visit to the dentist's office becomes a dinosaur experiment when Dan learns how the shape of dinosaur teeth can help prove if the dinosaur was a carnivore or a herbivore. Dan tests the attack patterns of the Dromaeosaurus, Spinosaurus and a T. rex by using a snow Triceratops as a decoy.

Dan figures out which dinosaur left a prehistoric "droppings" with the help of his friends Jim the reptile expert and Denny the Dromaeosaurus. Kami, Ricardo, and Dan learn that dino gas might have helped cause the extinction of the dinosaurs, and can't wait to share that info with the class.

Dan figures out how to prove if dinosaurs were warm-blooded from Jim the reptile lizard and his puppet Denny the Dromaeosaurus. Dan wants to see the Euoplocephalus use its powerful tail while Trek wants to see it snow. Can both Henderson boys get their wish?

When a Pterodactylus gets stuck in the house it's up to Dan, Mom, Angie, and Trek to get it out. Dan uses the art of disguise to get his Remote Dino Cam into a Triceratops nest, but the real test comes when a T. rex threatens the safety of the babies.

Dan teaches a baby Triceratops defensive moves to help it get around a meat-eating Spinosaurus. When Cory's snack goes missing, Dan knows who took it... a Dromaeosaurus. Now he's just got to track it down and get Cory's snack back.

The school bus has a huge dent in it. Dan has three suspects: the Euoplocephalus, the Stegosaurus, or the Stygimoloch. When a T. rex backs down from a Triceratops, Dan learns that there's more to the T. rex than he knows.

Dan tries to save his Mom's garden from a sneaky Compsognathus by dino-trapping it, but ends up trapping a baby T. rex instead. Dan makes reading buddy time more interesting by turning the classic tale of Little Red Riding Hood into a dinosaur epic featuring the Spinosaurus.

Dan learns how dinosaurs get their names when he discovers what he thinks is a new dinosaur but is actually the Diplodocus. While at the park with Uncle Jack, Dan finds a feather that he thinks belongs to a Dromaeosaurus. But, before he can prove it, his dog Doug goes missing. Uh-oh.

Jim the reptile expert, returns to Mrs. Carver's class with a chameleon prompting Dan to question if the Stegosaurus could change the color of its plates. The kids make a stop-motion animation movie for art class that features the T rex, but Angie and Dan can't seem to agree about certain T. rex "facts."

A Christmas Special: Dan takes the poem "Twas the Night Before Christmas" and gives it a dinosaur spin. Dan learns whether or not the Stygimoloch would flee from a Tyrannosaurus rex or stand and fight.

While Uncle Jack teaches Dan to fish, Dan teaches Uncle Jack all about dinosaurs and pterosaurs. When Dan goes to the grocery store with Mom, it's up to Doug to save a baby Edmontosaurus from a Dromaeosaurus.

Dan is trying to track a Stegosaurus when Trek wants to join his game. Dan learns sometimes two brains are better than one. During a campout in his backyard with Cory and Ricardo, Dan learns whether the T rex was nocturnal.

Dan tells a story of two cavemen, who look a lot like Cory and Ricardo, and their quest to catch a baby T. rex and keep it as a pet. Dan's police officer mom comes to school, and Dan uses some of his mom's cool police gear to find out how fast the Dromaeosaurus could run.

It's Dan's birthday and Mom and Trek have a dinosaur surprise for him: a dino scavenger hunt with all his friends! Dan teaches Trek how to ride a bike while teaching a baby Pterodactylus how to fly.

When Grandma takes Dan to the zoo, Dan finds a baby T. rex and tries to get it back to its mom. During gym class, Dan races a T. rex and a Spinosaurus to see who's the faster carnivore.

Dan tells a story of how Detective Ricardo solved "The Case of the Missing Flowers" with a little help from a dame named Kami and her butler, Cory. In gym class, Dan learns a bit about teamwork and planning from the Dromaeosauruses when he and his friends play Mr. Drumheller in a friendly came of basketball.

Dan builds a watering hole to see if different kinds of dinos took water breaks together, and when three baby dinos get stuck in his backyard, it's up to Dan to save them. Dan learns how to make his gym class dance unit fun by incorporating different dinosaur movements into his dance routine.

Dan tells the story of how the brave pirate Captain Cory, his first matey, Jordan, and his pirate cook, Ricardo, find treasure on Dino Island. Grandma takes Dan and Trek go-karting and Dan figures out which herbivore is the fastest: the Stygimoloch, the Triceratops, or the Edmontosaurus.

Dan, Kami, Jordan, and Uncle Jack build a sand castle and learn that some dinos were a lot like construction vehicles. Dan explores dinosaur sounds when he tries to get a Triceratops' snort on tape.

When Dan goes mini-golfing with Cory and his dad, some pesky dinosaurs steal Dan's lucky ball and Dan has to get it back. Based on the "Three Little Pigs," Dan tells the story of The Three Little Paleontologists Kami, Jordan, and Angie, and what material would make the best dino-watching fort.

Uncle Jack takes Dan and Trek bowling and Dan protects some Stygimoloch eggs from two hungry Dromaeosauruses. Dan finds a large dinosaur tooth and tries to figure out if it belongs to a T. rex or a Spinosaurus, with the help of his vet.

When Mom takes Dan to the farm, he finds some downy feathers and sets out to prove that they belong to the Compsognathus. Dan tells the story of how Time Traveler Cory and his trusty robot D.A.D. (Cory's Dad) go back to three ages of the dinosaurs (the Triassic, Jurassic, and Cretaceous) to find the T. rex and get a photo of it.

Dr. David surprises Dan and his friends with a sleepover at the Royal Ontario Museum, but the fun turns to mayhem when some wily dinosaurs steal a 65-million-year-old T. rex claw. Dan has to get it back before bedtime! Can he do it?