Popeye and Olive are touring a museum when they accidentally launch a rocketship to Mars. Olive escapes, but Popeye gets to Mars, where he is attacked (by a group led by Bluto) that was preparing to invade Earth. Fortunately, Popeye has a can of spinach handy, so he can save the Earth (turning most of the Martian war apparatus into amusement park rides).

The boys see lovely nurse Olive pass by and follow her to her hospital. She throws them out, so they scheme to hurt themselves enough to get hospitalized, with no luck. Bluto gets a wall to fall on him, but stands in the window. Popeye tries to get run over by a steam-roller, but a street cleaner saves him. Bluto dives off a skyscraper - into a huge pile of mattresses. Popeye stands in a naval gunnery range, but the gunners miss the target. Bluto taunts a bull, but stands next to a billboard of an attractive cow, which distracts the bull. Popeye crashes a plane, but the ambulance crew rescues the plane. The boys compete to get run over by a train, but punch each other off the tracks just as the train arrives. Finally, Popeye forces a can of spinach down Bluto's throat and gets a pounding. That lands him in the hospital but not Olive's; they failed to notice the sign: "Cat and Dog Hospital." They start fighting like cats and dogs, and get hauled off to the looney bin.

Popeye and Olive can't ignore it when produce vendor Bluto comes by with his terribly overloaded cart, whipping his horse and denying it water. They intervene, and while Bluto fights them off for a while, ultimately prevail.

Old Silas Blackburn, a wealthy recluse, lives alone with his butler and his ward Katherine. One night, Katherine discovers Silas murdered in the room where three generations of Blackburns have mysteriously died. Silas' grandson Robert, whom Katherine loves, comes to visit the next day, suffering from amnesia.

In this action-packed serial, government agent Quentin Locke infiltrates a corrupt patents company, only to run into the gleaming terror of its robot protector, the Automaton. In order to save the beautiful Eva Brent and find a cure for the dreaded Madagascar Madness, Locke suffers an inhuman array of tortures and physical restraints. He is chained, tied with barbed wire, padlocked in a crate and thrown in the water, tied beneath a descending elevator, strapped to an electric chair, and bound in an elaborate Oriental torture chamber.

A young heiress of an American gun factory is threatened by a masked man after her father was murdered. This criminal might be a member of her family or a German agent, who wants to get information about the factory's products, perhaps his mystery has a combined solution - we will probably never know...

A silent movie serial directed by George B. Seitz.

Spies from Japan conspire to steal the Channing "preparedness" fortune and invade the United States, beginning in New York, then allying themselves with Mexicans across the border. They are stopped by the efforts of munitions factory heiress Patria Channing and U.S. Secret Service agent Donald Parr.

A 1916 movie serial.