Denver's cool, charming, historical and adventurous, not your typical Barney. Denver and his loyal friends Jeremy, Wally, Shades, Mario, Heather, and Casey outwit unscrupulous concert promoter Morton Fizzback and other clueless Californians eager to exploit Denver's magical qualities.
Shades had developed a recent interest in karate, as well as in Nikko, the daughter of his instructor
Wally has a part-time job working at KAY-HIP radio, where the disc jockey, Rockman, is trying to make his show more popular than that of the rival station, KAY-LOUD.
When Heather's and Wally's parents announce they are expecting out-of-town guests, Heather and Wally are forced to hide Denver at the movie theater, which is rumored to be haunted.
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.
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.
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.
Heather and the boys take Denver to a mountain ski resort.
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.
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 falls in love with a mechanical dinosaur and follows her into the Big Deal Movie Studios. His friends must get him home without being discovered.
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, 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
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).
The kids need Denver out of the way while they prepare a surprise birthday party for their dino-pal. But dino-sitter Freddy Facknitts gets them both into trouble when his "space ship" puts Dr. Funt, who thinks he is an alien from outer space, on their tail.
Denver is put through his paces, participating in an exercise program with the kids while trying to hide a mischievous baby gorilla.
While at a medieval fair, Denver and the gang wind up in a wacky jousting tournament, pitted against Morton Fizzback's Black Night.
Morton Fizzback and Bertha Bird collaborate to seek Denver after he escapes from them in a hot-air balloon.
The kids play hockey against Morton Fizzback's team of professional misfits-- and the winner gets Denver!
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.
When Denver, Casey and Freddy Facknitts accidentally become airborne in the latter's created aircraft, rumors of UFO sightings start to spread through the town.
Casey befriends Louden, a shy, withdrawn, new kid, who has a passion for dinosaurs.
Denver dreams he's battling evil aliens from Pluto in a 1950's style sci-fi flick.
Mario reads a story he wrote to Denver and the gang, which comes to life with the aid of their imaginations, leading them on an adventure involving a magic cavern filled with treasure, a flying carpet, and a genie in a lamp.
The kids and Denver get in trouble when they try to find a place to skateboard at California's colorful Venice Beach.
While on a mapping expedition with Jeremy's great-aunt Adelaide, Denver and the gang run into two bizarre alligator poachers, and a love-sick alligator, who mistakes Denver for one of his own kind.
Dr. Funt and Morton Fizzback aspire to create a major snowstorm in Los Angeles.
Denver's new-found passion for gourmet cooking is challenged when he is asked to prepare the food for a party for Jeremy's new girlfriend.
Disguised in a Chinese lion headdress and robe, Denver leads a mad chase for dognappers through Chinatown during the Chinese New Year Parade.
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.
Mario and Shades get jobs working for competing fast food restaurants, and it jeopardizes their friendship.
When Shades' grandfather accidentally misdirects this year's annual Cinco de Mayo parade, Denver and the gang must save the festival.
The boys receive an invitation from their friend Senior Santos to spend a relaxing week at a resort located on the mythical island of Canatta.
Denver is discovered by a newspaper reporter, who aspires to make Denver the topic of his newest front-page headline.