Without Warning poster
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Without Warning

5.219801h 29mRMovieHorrorScience Fiction

When a mountain town is besieged by aliens, stranded teens Sandy and Greg team up with a local hunter as a paranoid war vet becomes convinced they're the enemy.

DirectorGreydon Clark
WritersSteven R. Mathis·Lyn Freeman
ProducersGreydon Clark·Skip Steloff

Where to watch

PlexPlex
Availability shown for United Kingdom · rights vary by country

Cast · Directed by Greydon Clark

TNTarah Nutter
Tarah Nutter
Sandy
CN
Christopher S. Nelson
Greg
JPJack Palance
Jack Palance
Joe Taylor
MLMartin Landau
Martin Landau
Fred 'Sarge' Dobbs
SLSue Ane Langdon
Sue Ane Langdon
Aggie
NBNeville Brand
Neville Brand
Leo
CMCameron Mitchell
Cameron Mitchell
Hunter
DHDarby Hinton
Darby Hinton
Randy
DCDavid Caruso
David Caruso
Tom
KHKevin Peter Hall
Kevin Peter Hall
The Alien
LTLynn Theel
Lynn Theel
Beth
LSLarry Storch
Larry Storch
Scoutmaster

More from Christopher S. Nelson · Co-star actor

The Mary Tyler Moore Show
The Mary Tyler Moore Show
1970 · 7.7
Emergency!
Emergency!
1972 · 8.0
Adam-12
Adam-12
1968 · 7.1
The Six Million Dollar Man
The Six Million Dollar Man
1974 · 7.3
Roller Boogie
Roller Boogie
1979 · 5.6
Tag: The Assassination Game
Tag: The Assassination Game
1982 · 5.5
Senior Year
Senior Year
1974 · 10.0
Pink Motel
Pink Motel
1982 · 3.0
Lady of the House
Lady of the House
1978
See all fromChristopher S. Nelson

More from Greydon Clark · Director

Joysticks
Joysticks
1983 · 4.4
The Return
The Return
1980 · 5.9
Hi-Riders
Hi-Riders
1978 · 6.1
The Forbidden Dance
The Forbidden Dance
1990 · 6.1
Uninvited
Uninvited
1988 · 4.8
Angels' Brigade
Angels' Brigade
1979 · 3.1
Mad Dog Coll
Mad Dog Coll
1992 · 5.1
Satan's Cheerleaders
Satan's Cheerleaders
1977 · 4.5
Wacko
Wacko
1982 · 5.1
Final Justice
Final Justice
1984 · 2.7
See all fromGreydon Clark

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Without Warning — streaming FAQ

Which OTT platform streams Without Warning?

Without Warning is streaming on Plex in United Kingdom, and available to rent or buy on Amazon Video. It's not currently on Netflix.

Is Without Warning on Netflix?

No, Without Warning is not on Netflix in United Kingdom as of September 2026. It's currently on Plex.

Is Without Warning on Amazon Prime Video?

Without Warning isn't included with a Prime Video subscription in United Kingdom, but you can rent or buy it on Amazon Video.

Where can I watch Without Warning for free?

Without Warning is available to stream free (with ads) on Plex in United Kingdom.