An American joins the British Royal Air Force just before Pearl Harbor is attacked, and falls in love with a beautiful English girl.

When a barnstorming stunt pilot decides to join the air corps, his two goofball assistants decide to go with him. Since the two are Abbott & Costello, the air corps doesn't know what it's in for.

Petty con artists Slicker Smith and Herbie Brown mistakenly join the Army evading the cops. The cop chasing them winds up as their drill instructor. A rich young man and his former working class chauffeur are not only in the same unit, they're vying for a pretty girl who seems attracted to both.