Mystery Ship(1941)

SPIES TAKE OVER A U.S. SHIP IN MID-ATLANTIC...as U.S. agents keep the Stars and Stripes flying in submarine-infested waters!

Mystery Ship is a crime thriller following FBI agents Allan Harper and Tommy Baker as they oversee the transport of dangerous subversives, spies, and saboteurs destined for deportation aboard a vessel bound for foreign shores. When the prisoners attempt a violent takeover of the ship, Harper and Baker must contain the rebellion and maintain control during the high-stakes voyage. Tensions escalate as the agents confront the cunning and desperation of their charges, leading to a taut battle of wills on the open water. The film explores themes of authority, deception, and survival as the mission spirals toward chaos.