Axel ventures into his uncle's strictly off-limits basement lab in hopes of fixing a broken toy and ends up unleashing living ones instead: the renegade Madcap and a whole team of superpowered toys dedicated to stopping him!

When Axel and the team try to figure out what Sarge Charge's secret weapon is, they get ejected from the house by his newly upgraded security system and must fight their way back inside before Madcap does.