Robotboy is the latest creation of the world renowned scientist Professor Moshimo. Due to fears that Robotboy would be stolen by his arch-enemy Dr. Kamikazi and his main henchman Constantine to be used to take over the world Professor Moshimo entrusts Robotboy to 10-year-old Tommy Turnbull his biggest fan. While being protected by Tommy and his two friends Lola and Gus or "G-man" as he calls himself Robotboy learns how to behave and act as if he were a real boy.