Scientists and US Air Force officials fend off a blood-thirsty alien organism while investigating at a remote arctic outpost.

Kenneth Tobeyas Captain Patrick Hendry
Margaret Sheridanas Nikki
Robert Cornthwaiteas Dr. Arthur Carrington
Douglas Spenceras Ned 'Scotty' Scott
James Youngas Lt. Eddie Dykes
Dewey Martinas Crew Chief Bob
Robert Nicholsas Lt. Ken 'Mac' Erickson
Eduard Franzas Dr. Stern
Russell Harlan