Duke hates his job. He has to let kids climb on his back and ride him for hours every single day. But one brat finally pushed him too far. Duke has broken free of his ride and is on a bloody rampage of revenge. He's going to murder that kid and anyone that gets in his way.

Popeye has been dealing with a creature on the island of Ohio. It put a hole in his boat and keeps trying to kidnap Olive Oyl! At the same time Wally Griswold won a trip to Ohio from a mysterious contest. Can these two heroes solve the mystery of this malicious monster?