Thrill after thrill will hold you breathless in Fox Movietone Drama
In the waning days of WWI, a U.S. "Mystery Ship," sets sail for the coast of Spain towing a submarine. Their mission is to find and sink a U-boat that has been especially effective in attacking Allied shipping. Posing as a harmless schooner, the mystery ship is in fact fitted with a formidable gun capable of sinking a U-boat. Stopping in the Canary Islands to refuel, the crew interacts with locals involved with Germans, and with Germans themselves, including the sister of the U-Boat commander, who is lurking offshore waiting for the coming battle.
George O'BrienCmdr. Robert 'Bob' Kingsley
Marion LessingAnna Marie Von Steuben
Mona MarisFraulein Lolita
Walter C. KellyChief Mike 'Guns' Costello
Warren Hymer'Lug' Kaufman
Steve PendletonEns. Richard 'Dick' Cabot (as Gaylord Pendleton)
Walter McGrailChief Joe Cobb
Larry KentLt. 'Mac' McGregor
Henry VictorBaron Ernst von Steuben (U-boat commander)
John LoderFranz ShillerPhilip AhlmGerman Chief Petty Officer (uncredited)Al BennettNaval Reservist (uncredited)Earl Wayland BowmanNaval Reservist/Swimmer and Diver (uncredited)Bill BrandeNaval Reservist (uncredited)
William Collier Sr.Mugs O'Flaherty (uncredited)
