The scene of action embraces Tangier, Toulon and the Mediterranean, where Pierre Fresnay, Rolf Wanka and Kim Peacock, cast as captains of French, German and English boats, respectively, unite to rescue the passengers of a neutral boat that is about to be engulfed in a cloud of poison smoke released by a smuggling ship.
as Le commandant Lestailleur
as von Schlieden
as Le commandant Falcon
as Claire Lestailleur
as Martin
as La matelot Jaubert
as Le docteur Laurent
as Le journaliste
as Le capitaine Dulac
as Huguenin, le second-maître
as Le matelot Calas