S1, E4: Spydra journeys back to 15th century Florence Italy in an attempt to steal Leonardo Da Vinci's famous perpetual motion machine, not realizing his inventions only exist on paper. Gadget Boy, G-9 and Heather, hot on Spydra's trail, are a little surprised when they find a teenage Leonardo dejected and lacking confidence. It takes a rousing adventure and Leonardo actually seeing his inventions in use between Spydra and the Gadget team to give him the confidence he needs to become one of history's greatest minds.