Created by the government to fight of world threatening peril Big Guy was the world's first artificially intelligent robot... or so the government wanted us to believe. But Big Guy is really just a super-suit with a man inside posing as Big Guy's mechanic. The world was not to know Big Guy wasn't A.I. because they couldn't tell society the technology wasn't ready yet. Years later Big Guy finds himself being replaced by an enthusiastic young robot named Rusty who actually has A.I. as well as the mind and personality of a ten-year old. But when saving the world proves too hard for Rusty Big Guy is called out of retirement. But now he must show the young robot the ropes.