Cast & Crew
Three former naval commandos--bank executive Bill Webb, nightclub pianist Pru Lawson, and Dave Newton--are summoned by their ex-commander, Nick Rawlings, to participate in a secret mission dubbed "Operation Mermaid." Once at sea, they learn that they are to recover $10 million in stolen war booty. The treasure was hidden by German General von Kreisling with the collaboration of two Allied officers, an American and a Frenchman, to whom he gave pieces of a map pinpointing its hiding place. Nick Rawlings holds the American's segment, which he explains was obtained through intelligence sources. In Cherbourg, contact is made with Helene Bretton, purported agent for the recently released von Kreisling, and she supplies his third of the puzzle. The final portion, originally held by the French collaborator, who is now dead, is discovered behind a painting of a mermaid. The group quickly put to sea toward Mont-Saint-Michel in Normandy, where the loot is said to be hidden in a family tomb. The bullion and works of art are found, and with them a painting of Helene's mother. She reveals herself to be a French secret agent and identifies Rawlings as the American traitor with whom the German general had made his deal. Rawlings escapes but is killed in the quicksands on the beach of Mont-Saint-Michel.
Released in Great Britain in 1963 as The Bay of Saint-Michel at 73 min. Also known as Operation Mermaid.