Seas Beneath 1931

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.

Cast:

George O’Brien
Cmdr. Robert 'Bob' Kingsley 

Marion Lessing
Anna Marie Von Steuben 

Mona Maris
Fraulein Lolita 

Walter C. Kelly
Chief Mike 'Guns' Costello 

Warren Hymer
'Lug' Kaufman 

Steve Pendleton
Ens. Richard 'Dick' Cabot (as Gaylord Pendleton)