Based on an incident that occurred off the coast of Florida in 1973, this film tells the story of four men who find themselves trapped in a mini-submarine in the ocean depths.
as Victor Bateman
as T.C. Hollister
as Sam Wallants
as Jack Beech
as Grace Wallants
as Cmdr. Prestwick (as Warren Kemmerling)
as Gordon Gaines
as Chris Moffet
as Lt. Cmdr. Hanratty
as PO1 Stanton
as Jeff Turley
as Capt. Osborn
as Jimmy
as Cmdr. Robbins
as Dr. Lewison
as Howard Wynter
as Sailor #1
as Sailor #2
as Seaman Schrier
as Narrator (voice)
