Dirección: John Sturges
El Comandante James Ferraday está al mando de un submarino atómico americano cuya misión es llegar a la estación meteorológica Cebra, en el Polo. Allí los hombres de Ferraday deben recuperar un microfilm con información vital para la defensa nacional y que también busca el ejército ruso.
Rock Hudson
Cdr. James Ferraday
Ernest Borgnine
Boris Vaslov
Patrick McGoohan
David Jones
Jim Brown
Capt. Leslie Anders
Tony Bill
Lt. Russell Walker
Alf Kjellin
Col. Ostrovsky
Gerald S. O'Loughlin
Lt. Cdr. Bob Raeburn
Ted Hartley
Lt. Jonathan Hansen
Murray Rose
Lt. George Mills
Michael T. Mikler
Lt. Courtney Cartwright
Joseph Bernard
Dr. Jack Benning
Jonathan Goldsmith
Russian Aide
Sherwood Price
Lt. Edgar Hackett
Lee Stanley
Lt. Mitgang
John Orchard
Survivor
Jim Dixon
Earl MacAuliffe
Ron Masak
Paul Zabrinczski
Boyd Berlind
Bruce Kentner
Craig Shreeve
Gafferty
Wade Graham
Parker
Rock Hudson
Cdr. James Ferraday
Ernest Borgnine
Boris Vaslov
Patrick McGoohan
David Jones
Jim Brown
Capt. Leslie Anders
Tony Bill
Lt. Russell Walker
Alf Kjellin
Col. Ostrovsky
Gerald S. O'Loughlin
Lt. Cdr. Bob Raeburn
Ted Hartley
Lt. Jonathan Hansen
Murray Rose
Lt. George Mills
Michael T. Mikler
Lt. Courtney Cartwright
Joseph Bernard
Dr. Jack Benning
Jonathan Goldsmith
Russian Aide
Sherwood Price
Lt. Edgar Hackett
Lee Stanley
Lt. Mitgang
John Orchard
Survivor
Jim Dixon
Earl MacAuliffe
Ron Masak
Paul Zabrinczski
Boyd Berlind
Bruce Kentner
Craig Shreeve
Gafferty
Wade Graham
Parker
Rock Hudson
Cdr. James Ferraday
Ernest Borgnine
Boris Vaslov
Patrick McGoohan
David Jones
Jim Brown
Capt. Leslie Anders
Tony Bill
Lt. Russell Walker
Alf Kjellin
Col. Ostrovsky
Gerald S. O'Loughlin
Lt. Cdr. Bob Raeburn
Ted Hartley
Lt. Jonathan Hansen
Murray Rose
Lt. George Mills
Michael T. Mikler
Lt. Courtney Cartwright
Joseph Bernard
Dr. Jack Benning
Jonathan Goldsmith
Russian Aide
Sherwood Price
Lt. Edgar Hackett
Lee Stanley
Lt. Mitgang
John Orchard
Survivor
Jim Dixon
Earl MacAuliffe
Ron Masak
Paul Zabrinczski
Boyd Berlind
Bruce Kentner
Craig Shreeve
Gafferty
Wade Graham
Parker