When the time comes for Hugo to leave home and move in with his uncle 'Big Boss' and his two nutty cousins, he encounters the Professor, who has devoted his life to revealing the existence of these crafty creatures to the world. If this weren't enough, Hugo must rescue his cousin from Sid and his rival greedy gang who live across town. Wacky and weird adventures ensue, as Hugo learns valuable lessons along the way about family, the limits of greed, and the true meaning of loyalty.