Inspired by Churchill's Dunkirk speech, brash, undisciplined Canadian bush pilot Brian MacLean and three friends enlist in the RCAF.
James Cagney
Brian MacLean
Dennis Morgan
Johnny Dutton
Brenda Marshall
Emily Foster
Alan Hale
Tiny Murphy
George Tobias
Blimp Lebec
Reginald Gardiner
Scrounger Harris
W.A. Bishop
Himself
Reginald Denny
Commanding Officer
