A mysterious, man-sized monster kills a fisherman at sea. A Biologist and a Federal Agent discover a man's body, washed up on the beach and covered with radiation burns.

Lucy enters a dog food jingle contest and wins the grand prize: a trip to London, England. She packs her ticket in her luggage and misses her plane and finds herself seated next to Mr. Mooney on the next flight.

Shemp has been ill with a toothache. The Stooges’ friend Claude (Matt McHugh), a self-proclaimed doctor, gives Moe and Larry some specific instructions on how to cure the toothache, which, of course, they misinterpret every which way possible. After finally yanking the troublesome tooth, Claude suggests they take Shemp on a camping trip for a little R&R. Since the Stooges do not own a car, Claude offers to sell them a car that turns out to be a “lemon.”