An American pilot with a top-secret invention is kidnapped by foreign agents.

Jim Smiley has a frog that can jump further than anyone else's frog, and Jim becomes obsessed with entering the frog in all of the local jumping-frog contests, not realizing that his obsession is about to cost him his marriage.

While on shore leave to celebrate his first anniversary, Lt. Peter Duluth (Warren Douglas) takes his wife, Iris (Audrey Long), to a Los Angeles hotel but is turned away. When mysterious Colette (Stephanie Bachelor) offers them her suite, the young couple becomes entangled in a murder plot. Aided by two PIs, Peter and Iris find two corpses and are desperate to locate Colette before she becomes the next victim, but the killers are one step ahead.

The arrival in a small mountain town of a dissheveled stranger launches a series of murders committed by some sort of animal. As the town doctor and his daughter attempt to help the stranger, the sheriff investigates the murders; and they uncover a sinister experiment involving two rogue scientists, a car accident victim, his wife and children, and a serum that causes a man to turn into a ravaging werewolf.

A young lawyer is determined to identify who is murdering members of a wealthy New York publishing family.

On a scientific expedition to Siam young Billy Batson is given the ability to change himself into the super-powered Captain Marvel by the wizard Shazam, who tells him his powers will last only as long as the Golden Scorpion idol is threatened. Finding the idol, the scientists realize it could be the most powerful weapon in the world and remove the lenses that energize it, distributing them among themselves so that no one would be able to use the idol by himself. Back in the US, Billy Batson, as Captain Marvel, wages a battle against an evil, hooded figure, the Scorpion, who hopes to accumulate all five lenses, thereby gaining control of the super-powerful weapon

Stan and Ollie get involved with con men, crooks, a genial magician, and two interchangeable coffins with disastrous but funny results.