A computer at a nuclear power plant malfunctions and receives erroneous information of a radiation leak. It seals off the compound, trapping the crew inside.

Directed by: William Hale
Release date: 1977-05-18
Runtime: 95 minutes
Cast:
William Devane William Devane
Frank Brolen 
Michael Brandon Michael Brandon
Carl Wyche 
Adrienne Barbeau Adrienne Barbeau
Judy Wyche 
Ralph Waite Ralph Waite
Henry Stone 
David Hayward David Hayward
Larry Cadwell 
M. Emmet Walsh M. Emmet Walsh
Sheriff Sweeney 
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Also known as:
  • Alarmstufe Rot
  • Alerte rouge