Penny is caught and almost turned into a boy forever so that she will not be able to stop Doctor Claw.

That bionic bonehead is off to the North Pole to stop Dr. Claw from taking over Santa's elves and workshop. Accompanied as usual by Penny and Brain who foil Claw's operations once again.

Gadget is still a klutz and Dr. Claw has a vicious new plan that makes him a super-hero in disguise to try to ruin Gadget and to take over the world, but as usual Gadget in his zany ways wins.

We've got gadgets galore as the good inspector gets caught up in a plot to steal Metro City's priceless new attraction- a prehistoric giant flying lizard egg ready to hatch at any moment! Can Gadget crack the case in time? Or will the giant flying lizard stomp Metro City into a pulp?