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.
A crooked politician finds himself being accused of murder by a gangster from whom he refused help during a re-election campaign.
Having been discharged from the Marines for a hayfever condition before ever seeing action, Woodrow Lafayette Pershing Truesmith delays the return to his hometown, feeling that he is a failure. While in a moment of melancholy, he meets up with a group of Marines who befriend him and encourage him to return home to his mother by fabricating a story that he was wounded in battle with honorable discharge.
