When bookseller Buzz cons Diana into thinking that his friend Stanley knows all there is to know about Africa, they are abducted and ordered to lead Diana and her henchmen to an African tribe in search of a fortune in jewels.

As American policemen in London, Bud and Lou meet up with Dr. Jekyll and Mr. Hyde.

Lost Caverns Hotel bellhop Freddie Phillips is suspected of murder. Swami Talpur tries to hypnotize Freddie into confessing, but Freddie is too stupid for the plot to work. Inspector Wellman uses Freddie to get the killer (and it isn't the Swami).

Fight manager takes out an insurance policy on his puny pugilist and then proceeds to try to arrange for an accident so that he can collect.

Two ghosts, who were mistakenly branded as traitors during the Revolutionary War, return to 20th century New England to retrieve a letter from George Washington which would prove their innocence.

In the gay '90s, cardsharps take over a Mississippi riverboat from a kindly captain. Their first act is to change the showboat into a floating gambling house. A ham actor and his bumbling sidekick try to devise a way to help the captain regain ownership of the vessel.

Petty con artists Slicker Smith and Herbie Brown mistakenly join the Army evading the cops. The cop chasing them winds up as their drill instructor. A rich young man and his former working class chauffeur are not only in the same unit, they're vying for a pretty girl who seems attracted to both.