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The Terror Within
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You can watch The Terror Within (1989) for free on Plex.
Experiments in biological warfare have destroyed all but a few remnants of the human race. Alone in a lab, eight students work feverishly to create a vaccine before they are forced outside in search for food. It is then that the surviving scientists discover creatures mutated by the plague. Now they prepare to do battle against their worst fear: The Terror Within.
The Terror Within is a film that explores themes of biological weapon, monster, mutant. It also touches on post-apocalyptic future and laboratory and vaccine.
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Director
Thierry Notz
Cast
George Kennedy, Andrew Stevens, Starr Andreeff, Terri Treas, John Lafayette, Tommy Hinkley, Yvonne Saa, Joseph Hardin, Al Guarino, Jack Valan
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The Terror Within
You can watch The Terror Within (1989) for free on Plex.
Director
Thierry Notz
Cast
George Kennedy, Andrew Stevens, Starr Andreeff, Terri Treas, John Lafayette, Tommy Hinkley, Yvonne Saa, Joseph Hardin, Al Guarino, Jack Valan
5 options ranked by value · 🇺🇸 United States
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biological weapon · monster · mutant · post-apocalyptic future · laboratory · vaccine · desert · walkie talkie · flame thrower · rattlesnake
Watch The Terror Within for free on Plex. Watch The Terror Within for free on Plex Channel. Watch The Terror Within for free on Fawesome. Watch The Terror Within for free on The CW. The Terror Within is streaming on Shout! Factory Amazon Channel. Availability last verified May 4, 2026.