Ro-Man, an alien robot who greatly resembles a gorilla in a diving helmet, is sent to earth to destroy all human life. Ro-Man falls in love with one of the last six remaining humans, and struggles to understand how his programming can instruct him to kill her while his heart demands that he can't.

Years after the death of her husband, Kitty McNeil takes her son and flees from the home of her wealthy and controlling mother-in-law. Alone and jobless in New York, she runs into an old flame, her USO partner Donald Elwood, who agrees to help her fight for custody of the child.

Carefree Chuck Connor is on his way west and stops off to see an old friend and his four lads. When his host is killed in a riding accident Chuck realises he must take care of the family. They hit the road and he takes a job on a ranch, but he has to keep the children hidden as his boss hates kids. There's also tension with the neighbouring ranch, and when a girl on the run from her nasty uncle joins the family unannounced Chuck wonders what he has done to deserve all this.

A judge flees the pressures of professional and family life for a job as a short-order cook.