Mystery Ship(1941)
OVERVIEW
FBI agents Allan Harper and Tommy Baker are in charge of a group of subversives, spies and saboteurs that the US government is deporting to foreign countries aboard a ship. The deportees attempt to take over the ship.
TAGLINE:
SPIES TAKE OVER A U.S. SHIP IN MID-ATLANTIC...as U.S. agents keep the Stars and Stripes flying in submarine-infested waters!