Roy Cummins, a former military pilot, runs exhibition flights at a summer resort. Returning from a trip to fly a passenger to a steamship--for which he was paid $500--he meets Patricia Barton, who warns him against accepting the money. It seems she has learned that the passenger he has delivered to the ship is a criminal fleeing the law with some valuable stolen goods. He soon finds himself mixed up with a ring of thieves, airborne bandits who attack cargo planes and a sexy "vamp" sent by the gang's leader to seduce him into turning over what information he knows about them.