Ships disappear on route across the Arctic Sea, and a special submarine is sent to investigate.
as Richard "Reef" Holloway
as Dan Wendover
as Carl Neilson Jr.
as Ian Hunt
as David Milburn
as "Grif" Griffin
as Clifford Kent
as Julie
as Admiral Terhune
as Justin Murdock
as Helen Milburn
as Frogman Carney
as Frogman Powell
as Chester Tuttle
as Watkins
as Narrator
as Saucer Voice (voice)
as Passerby (uncredited)
as Passerby (uncredited)
