Rodney Copperbottom has been inventing things ever since he got his first set of hand-me-down upgrades. Like his hero, Bigweld, he wants his inventions to help robots shine no matter what they’re made of.
But Rodney gets a shock when he goes to Robot City to follow his dreams. Bigweld Industries has been taken over by Ratchet, an evil robot who plans to get rid of all rusty, dented, dirty bots. Will Rodney be able to save Robot City from the scheming robot Ratchet?