Rufus T. Firefly is named president/dictator of bankrupt Freedonia and declares war on neighboring Sylvania over the love of wealthy Mrs. Teasdale.

A quiet, epileptic taxidermist plans the perfect crime. All he needs is the right opportunity. An accident, perhaps…

Four stowaways get mixed up with gangsters while running riot on an ocean liner.

The well-known explorer and hunter Captain Spaulding has just returned from Africa, and is being welcomed home with a lavish party at the estate of influential society matron Mrs. Rittenhouse when a valuable painting goes missing. The intrepid Captain Spaulding attempts to solve the crime with the help of his silly secretary Horatio Jamison, while sparring with the anarchic Signor Emanuel Ravelli and his nutty sidekick The Professor.

During the Florida land boom, the Marx Brothers run a hotel, auction off some land and thwart a jewel robbery.

Embezzler, shill, all around confidence man S. Quentin Quale is heading west to find his fortune; he meets the crafty but simple brothers Joseph and Rusty Panello in a train station, where they steal all his money. They're heading west, too, because they've heard you can just pick the gold off the ground. Once there, they befriend an old miner named Dan Wilson whose property, Dead Man's Gulch, has no gold. They loan him their last ten dollars so he can go start life anew, and for collateral, he gives them the deed to the Gulch. Unbeknownst to Wilson, the son of his longtime rival, Terry Turner (who's also in love with his daughter, Eva), has contacted the railroad to arrange for them to build through the land, making the old man rich and hopefully resolving the feud. But the evil Red Baxter, owner of a saloon, tricks the boys out of the deed, and it's up to them - as well as Quale, who naturally finds his way out west anyway - to save the day.

Journalist brothers feud over a woman they both fall for while covering World War II in the far east.

Naval commander Charles Storm has made life miserable for his wife Diana due to his insane jealousy over every man she speaks to. His obsessive behavior soon drives her to the arms of a handsome lieutenant. When Charles learns of their affair, he plots revenge.

Professor Barbenfouillis and five of his colleagues from the Academy of Astronomy travel to the Moon aboard a rocket propelled by a giant cannon. Once on the lunar surface, the bold explorers face the many perils hidden in the caves of the mysterious planet.