About
In a world gone mad, the last human colony struggles to survive underground, beneath a land of nightmarish mutants who seek to destroy them. But when the mutant breaks inside humanity's final stronghold, the battle for survival pits the human colonists against their deadly invaders miles below the earth's surface.
Theatrical
Jan 18, 1991
Director
Producers
Studio
Concorde Pictures
Keywords
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Amazon Video
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$3.99
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$9.99
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Prices last updated September 27, 2026. Pricing and availability may vary by region.
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Cast
Full credits →A
Andrew Stevens
David
S
Stella Stevens
Kara
C
Chick Vennera
Kyle
R
R. Lee Ermey
Von Demming
B
Burton Gilliam
Dewitt
C
Clare Hoak
Ariel
L
Larry Gilman
Jamie
B
Barbara Alyn Woods
Sharon
R
Renée Jones
Robin
L
Lou Beatty Jr.
Ernie
G
Gordon Currie
Aaron
B
Brad Blaisdell
Bo
B
Brewster Gould
Lusus
S
Scott Allen
Elaba Henchman #1
C
Cynthia L. James
Elaba
Terror Within Collection
Survivors in a post apocalyptic world try to survive when a mutant breaks into their stronghold and begins hunting them one by one
