The crew of the nuclear submarine USS Ulysses rescues supposed victims of a boat disaster, but the victims turn out to be terrorists intent on capturing nuclear weapons aboard the sub. Only a former SEAL, now a submarine consultant, can save the crew by sliding aboard while the sub is underwater. The term "crash dive" refers to the sudden dropping of a sub to escape detection, an act that a nuclear sub is never supposed to make. Of course, it comes into play in this film.
Michael Dudikoff
as James Carter
Frederic Forrest
as Admiral Pendleton
Reiner Schöne
as Richter
Jay Acovone
as Murphy
Clay Greenbush
as MacDonald
Catherine Bell
as Lt. Cmdr. Lisa Stark
Michael Cavanaugh
as Captain Lange
Cyrus Farmer
as Wager
Time Winters
as Saprich
Brittain Marcus
as Tommy
Pasha D. Lychnikoff
as Newton
Mio R. Jakula
as Avallone
