When his friends come over, Trek tells them the story of a haunted house, which turns out to not have ghosts, but sure has dinosaurs! Who ya gonna call? Dinobusters!

Trek teaches a baby T-rex how to hunt while Bobby tries to teach Doug how to use his new dog treat dispenser. / Grandma helps Trek with his homework for art class and together they create a comic book entitled "Tyrannosaurus Trek" about a caveman superhero who saves all the dinosaurs when a volcano erupts.

Mr. Paluxy runs rats through a maze for her science class experiment and gives Trek an idea for how to figure out "Dino Experiment 320 - Who was smarter, the Dromaeosaurus or the Troodon?". / While helping out at Penelope's parents pet store Trek convinces Penelope that the Troodon is the coolest dinosaur ever by telling her a story.

While Grandma's taking care of Trek, she decides to make BBQ for dinner but dinosaurs and pterosaurs keep stealing the food. / When Trek forgets to bring something for show and tell, he's in a mad dash to find something. When he spots a Psittacosaurus in the schoolyard he realizes one of its defensive tail quills would be perfect. But first, he's got to figure out how to get one!