A wrong turn leads the kids to Gruesome Gulch, a remote ghost town guarded by two car thieves who have installed a chop shop.
A pair of car thieves discover Schlepcar's secret and enlist a wacky hynotist to put Wonderbug under their control.
The gang teams with an aging prospector and her mule to beat a pair of nefarious scuba divers to Captain Kidd's treasure.
The kids are ensnared in the grasp of fur hijackers.
The kids become embroiled in espionage when they discover a roll of microfilm.
The kids find a bag full of stolen cash from a bank robbery, and Wonderbug helps them catch the thieves.
The kids find $50,000, and that means trouble.
Two unscrupulous villains are trying to scare Susie's uncle into selling his land so they can cut down trees to build a "bird sanctuary".
The kids contend with biker bullies at the beach.
The kids meet up with a strange android and find themselves in deep trouble.
The kids are confronted by car hijackers who confuse Schlepcar with a car made of gold.
The kids encounter horse thieves.
Wonderbug gets turned into a monster.
The kids encounter aliens in a UFO.
The kids enter a car race.
A pair of crooks hire the kids to star in a movie.