The twins use scientific techniques to help a history teacher look for "pirate treasure" that's supposedly hidden on his property.

Tom and Annie gear up for a big go-cart race by creating a scientifically enhanced vehicle for their friend Howie.

Tom's new career as a photographer may be having a negative effect on Annie's science project---and his relationship with his girlfriend.

Tom and Annie's black-tie party is jeopardized when Paul sets a tarantula loose.

Paul and his friend discover a baby elephant and decide to keep it as a pet.

Part 2 of three. The baby elephant that Paul discovered is on the loose again, but this time it's wearing a priceless jewel-covered harness.

Conclusion. The twins learn that the jewels in the elephant's harness are fakes and that the real gems are being smuggled out of the country.

Paul decides to focus on a career in filmmaking after an evening of video watching. Meanwhile, a family friend is in danger of being framed unless the twins discover the origins of a doctored videotape.

Tom decides to automate the entire Edison household, causing a massive electrical breakdown.

Tom and Annie cook up a plan to catch a poltergeist that's turning a pizzeria upside down.

After watching George Kelsy's video will, the twins take part in a treasure hunt in Kelsy's old mansion.

Lance gets Tom, Annie & Paul to participate in a bowling tournament & are known as the Weston Strikers! In each team, there's a pro or league bowler, two amateurs & a junior member. Four teams participate & The Weston Strikers along with the Roll & Bowl Bombers make it to the finals, two games; one on each home alley. In the deciding game, Lance's game has gone bad & thinks that his missing lucky locket is causing his losing streak. Then Annie notices that the bowling balls are all greased up. So she goes to Lance's car to get some sunglasses. She shows Tom & Lance that their lane is all oiled up causing a strike to be impossible to make. The four told the rival owner what he did & then asked the referee to change lanes (from lane 12 to lane 13). The Weston Strikers make a comeback to win the tournament (when Paul converts the 7-10 split). They donate the prize money to the owner of Lance's favorite bowling alley so he could remodel the place.

Lance's concert-going hits a sour note when he's almost arrested for using counterfeit tickets.