American Steve Kendall, a freighter's radio officer, discovers seaman Carlson sending an unauthorized message ashore as the ship approaches his war-poised homeland. Carlson is shot in cold blood when he jumps ship and Kendall, implicated in the espionage, swims ashore to avoid arrest. A woman he meets at the dock hides him in her apartment, where he learns Carlson was her brother, and they both work in a sabotage ring. Nedra is a singer at Tio's Cafe, and she approaches Tio for help when both the saboteurs and the secret police try to capture Steve.
Allan Lane
as Steve Kendall
Robert Barrat
as Tio / Edwards
Lionel Royce
as Second Lieutenant
J. Farrell MacDonald
as Captain of the Falcon
Charley Foy
as Studs
Linda Hayes
as Nedra Carlson
Lester Matthews
as Gair - Henchman
Henry Brandon
as Carlson - Crewman
Wilhelm von Brincken
as Second-Mate Wilso
Solly Ward
as Dr. Fromm
