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.
Denver and Jeremy enter a wacky game show only to find they're competing against the team Morton Fizzback and Professor Funt.
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.
Denver and Mario take a job as children's entertainers only to incur the wrath of Douggie, the Dancing Clown, who tries to sabotage Denver and Mario's entertaining efforts.
A boy genius, Freddy Facknitts, invents a time machine that sends Denver and Morton Fizzback into the past and into the middle of a crazy caveman competition called Mammothball.
While camping at a mountain lake with the boys, Denver is mistaken for a horrible lake monster.
Denver follows Jeremy to his job at the supermarket, where he hides in the storeroom and stuffs himself full of potato chips.
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
While visiting Jeremy's Uncle Eli on his Nevada ranch, Denver and the boys attend a local rodeo.
When the boys enter Wally's dog, Rocky, in a relay race for dogs, they also disguise Denver as a dog so that Rocky will perform well.
Wally borrows his sister Heather's video camera and the starry-eyed kids set out to make a video starring themselves.
The boys decide to do a science project on dinosaurs for the school science fair.
On a visit to Aunt Shadie's (Shade's aunt) ghost town, the kids and Denver go on a wild mining car ride while trying to retrieve the deed to the town from some thieves who had stolen it.
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
Heather and the boys take Denver to a mountain ski resort.
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, dressed in a Chinese lion robe and headdress, is in pursuit of dognappers in Chinatown during the Chinese New Year Parade.
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."
The secluded beach where Mario surfs and the kids play is taken over by Rad Tad and his group of Surf Dudes.
Shades had developed a recent interest in karate, as well as in Nikko, the daughter of his instructor.