An experimental submarine with a very experienced crew, the "Siren II" is sent to find out what happened to the "Siren I" after it mysteriously disappeared in a submarine rift. Things go awry when they begin to find things that shouldn't be there...
Jack Scalia
as Wick Hayes
R. Lee Ermey
as Captain Phillips
Ray Wise
as Robbins
Deborah Adair
as Lt. Nina Crowley
John Toles-Bey
as Joe Kane
Ely Pouget
as Ana Rivera
Emilio Linder
as Philippe
Tony Isbert
as Fleming
Frank Braña
as Muller
Edmund Purdom
as CEO Steensland
Salvador Sáinz
as Sailor OTAN (uncredited)
Pocholo Martínez-Bordiú
as Sven
