US Navy medical officer Jake Fuller is assigned to a goodwill visit aboard a Russian submarine. But he and his companion, Lt. Swain, end up alone among terrorists, who have taken over the submarine and threaten to fire its nuclear weapons.

Michael Dudikoffas Captain Jake Fuller
James Horanas Captain Petrov
Alexander Keithas Lt. Swain
Scott Marloweas Ambassador Silver
Robert Donavanas Commander Gregori
Rick Crameras Lt. Slavin
Tracy Brooks Swopeas Capt. Blake
Francine Yorkas Pamela Silver
Robert F. Lyonsas Commander Larkin
Thomas L. Callaway