The Gadget clan faces one last threat from M.A.D.'s Dr. Dumbkopf, which involves battling his hulking, irascible humanoid assistant named the Grappler. Fortunately, sweets, candies, and ultimately Penny's kindness help in soothing the soul of this misunderstood beast and thwarting Dr. Dumbkopf for the last time.

The show’s own verdict is on its page.