When Pappy bumps his head before bedtime, Olie cheers him up by inventing a super silly ray, and then they both become happy, sleepy robots.

Mrs. Bell challenges her science students to invent their own robots but when they start malfunctioning it becomes up to the DATA Set to deprogram the machines before an army of robots take over the school.

Rosie Revere dreamed of becoming a great engineer. Where some people see rubbish, Rosie sees inspiration. Alone in her room at night, shy Rosie constructs great inventions from odds and ends. Hot dog dispensers, helium pants, python-repelling cheese hats: Rosie's gizmos would astound--if she ever let anyone see them. Afraid of failure, she hides them away under her bed. Until a fateful visit from her great-great-aunt Rose (AKA Rosie the Riveter!),...