Tom and Annie try to decipher coded messages to find out who's sending them.
"The show must go on" when school-play director Paul finds out someone is trying to ruin his production by sabotaging the special effects.
The twins use their knowledge of sound to rescue a stolen pup.
Tom, Annie & Paul try to get ideas of how to celebrate their parents wedding anniversary. Annie reads in the paper that former rock star Chops Dorfman is ap... read more
The twins try to expose séances intended to scam a woman out of her savings.
When the twins and Paul get lost searching for hidden treasure, Tom improvises a compass to help them find their way.
Tom and Annie use the principles of color theory, light and reflection to prove a boy innocent of arson
The twins use an infrared camera to identify a thief who kidnapped Paul.
Tom and Annie's experiment with animation convinces their brother Paul that he's seen a UFO.
Using their knowledge of physics, Tom and Annie improvise a device to help a swimmer win a race.
The twins improvise a pulley to rescue their brother after he falls down a steep hill.
Tom and Annie put aside their bickering with twin cousins to help Paul solve a problem.
Tom's robotic invention goes haywire after Paul borrows it to let himself into a junkyard.