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To help Wally in his predicament with Johnny Price, a practical joker who continually torments him, 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 become friends with Johnny Price.

Decked out in caveman attire, Denver and the kids form a rock group (B.C. Rock) to compete in the city wide talent contest. Freddy Facknitts also form a group called Roborock (rock'n'roll robots). But Morton Fizzback and Dr. Funt steal the robot band right before the contest and the kids must go after them.

Denver, the boys, and Freddy Facknitts attend a comic book convention, dressed as their favorite comic heroes

No one anticipates the trouble that arises when one of the charity items collected for the school auction turns out to be a silver scepter belonging to Bertha Bird and her two sons.

Wally's pretty, female pen pal from Sweden, Inga Svinga, is coming to visit

Disguised in a Chinese lion headdress and robe, Denver leads a mad chase for dognappers through Chinatown during the Chinese New Year Parade.

Denver is kidnapped and put in a secret private zoo of the wealthy collector of exotic animals, Madame Menagerie, who hopes to make millions by selling the dinosaur to the movies.

In an embellished story of Jack and The Bean Stalk, Denver buys some magic corn kernels from Morton Fizzback, plants them, then climbs the giant stalk to arrive at the castle of the giantess (Bertha Bird).

Denver's mistaken identity at a golf tournament sets Fizzback and Funt off on a high-tech cheating spree while the golf course groundskeeper tries to capture what he believes to be the Loch Ness Monster.

When Denver, Casey and Freddy Facknitts become accidentally airborne in a Freddy-designed hover craft, the city starts to buzz with rumors of UFO sightings!

Mario and Shades get jobs working for competing fast food restaurants, and it jeopardizes their friendship.

Denver is participating in an exercise program with the kids while trying to hide a mischievous baby gorilla.

At a medieval fair, Denver and the kids wind up in a wacky jousting tournament, pitted against Morton Fizzback's Black Night.

Morton Fizzback and Bertha Bird join forces to pursue Denver after the dino escapes from them in a hot air balloon.

Denver and the kids help Jeremy's Great Aunt Adelaide save a precious fossil dig from a land developer who's being backed by Dr. Funt.

Denver's new-found talent as a gourmet cook is challenged when Jeremy is left alone to cater a party for his new girlfriend.

The kids play hockey against Morton Fizzback's team of professional misfits-- and the winner gets Denver!

Casey makes friends with Louden, the shy, withdrawn, new kid in town who has a passion for dinosaurs.

While on a mapping expedition with Aunt Adelaide, Denver and the kids meet two bizarre alligator poachers and a love-sick alligator, who mistakes Denver for an alligator.

The boys accept an invitation from their friend Senor Santos to spend a relaxing week at a resort on the mythical island of Canatta.

Denver dreams he's battling evil aliens from Pluto in a 1950's style sci-fi flick.

Mario reads a story he's written to Denver and the other kids, and through their imaginations they are all transported into an Arabian adventure involving a magic cavern filled with treasure, a genie in a lamp and a flying carpet.

The kids and Denver get in trouble when they try to find a place to skateboard at California's colorful Venice Beach.

Denver is discovered by a TV reporter who plans on making the dinosaur front page news

When Shades' grandfather misdirects this year's Cinco de Mayo parade, the boys must save the festival.

Morton Fizzback and Professor Funt conspire to create a major snowstorm in Los Angeles.