It is late spring when Wally, Jeremy, Shades and Mario are at the La Brea Tar Pits working on a school research project and discover a mysterious tar egg that cracks open to reveal a friendly dinosaur.
While visiting Jeremy's Uncle Eli on his Nevada ranch, Denver and the boys attend a local rodeo.
Casey's movie-star cousin, Lana Lake, invites Casey, the boys and Denver to watch the filming of her latest sci-fi movie, "Leapin' Lizards on the Loose."
When Heather gets a job at a Dinosaur theme amusement park, Denver roams freely around the park and fits right in with all the dino-costumed employees.
Denver follows Jeremy to his job at the supermarket, where he hides in the storeroom and stuffs himself full of potato chips.
Wally borrows his sister Heather's video camera and the starry-eyed kids set out to make a video starring themselves.
While camping at a mountain lake with the boys, Denver is mistaken for a horrible lake monster.
The boys decide to do a science project on dinosaurs for the school science fair.
Denver and the kids make friends with a circus owner's son and help him liven up a lackluster show with bicycle and skateboard stunts.
Wally's first day on the job at the zoo takes a turn for the worse when the self-serving Dr. Funt captures Denver for his new high-tech exhibit.
The kindhearted Denver rescues one of the boy's arch rivals, Scott, winning his heart and killing his plans to expose Denver to the media in order to gain publicity and votes for the upcoming s...Read More
Denver and Jeremy enter a wacky game show only to find they're competing against the team Morton Fizzback and Professor Funt.
When disreputable treasure hunters kidnap a valuable dolphin from a marine research facility and use him to locate sunken treasure, Denver dives in to save the dolphin.
Heather and the boys take Denver to a mountain ski resort.
The secluded beach where Mario surfs and the kids play is taken over by Rad Tad and his group of Surf Dudes.
To help Wally in his predicament with Johnny Price, Denver uses his magic tar eggshell and shows Wally a time in his own life when he was tormented by the Pteranodon, and Wally is able to becom...Read More
Denver and his friends form a rock band called Stone Age Rock. Freddy Facknitts invents a group of robots called The Roborockers. Denver and the gang must rescue the robots when Dr. Funt and Mo...Read More
Denver, the boys, and Freddy Facknitts attend a comic book convention. They are dressed as their favorite comic book characters.
Denver practices his magic act for the Charity Carnival. Denver wins and the prize is a rare historical artifact that was mistakenly donated for the raffle. Denver has to run from the shady Bir...Read More
Inga Vinga is a attractive girl who comes from Sweden for a visit. She also happens to be Wally's pen pal.