Spain in the 1930s is the place to be for a man of action like Robert Jordan. There is a civil war going on and Jordan—who has joined up on the side that appeals most to idealists of that era—has been given a high-risk assignment up in the mountains. He awaits the right time to blow up a crucial bridge in order to halt the enemy's progress.

Susan Applegate, tired of New York after one year and twenty-five jobs, decides to return to her home town in Iowa. Discovering she hasn't enough money for the train fare, Susan disguises herself as a twelve-year-old and travels for half the price. Caught out by the conductors, she hides in the compartment of Major Philip Kirby, a military school instructor who takes the "child" under his wing.

Lovely Linda Mason has crooner Jim Hardy head over heels, but suave stepper Ted Hanover wants her for his new dance partner after fickle Lila Dixon gives him the brush. Jim's supper club, Holiday Inn, is the setting for the chase by Hanover and his manager.

Sadistic killer-for-hire Philip Raven becomes enraged when his latest job is paid off in marked bills. Vowing to track down his double-crossing boss, nightclub executive Gates, Raven sits beside Gates' lovely new employee, Ellen, on a train out of town. Although Ellen is engaged to marry the police lieutenant who's hunting down Raven, she decides to try and set the misguided hit man straight as he hides from the cops and plots his revenge.

Shy sailor Casey Kirby suddenly becomes known as a sea wolf when his picture is taken with a famous actress. Things get complicated when bets are placed on his prowess with the ladies.

A bumbling senator investigating graft in Louisiana is the target of a scheme involving a Viennese beauty.

A pilot carrying a valuable amulet is shot down over China by a ruthless Russian agent, who also wants the amulet.