Critical Mass

Though never quite a movie star, the personable Treat Williams carved out a niche as a B-movie action hero and does a manful job of energizing this cliched nuclear-threat picture. International right-wing terrorist Sampson (Udo Kier) takes his act to US soil and leads home-grown militia men on a raid of Cyberdyne Systems' headquarters. Meanwhile, at an outmoded atomic energy plant, former sheriff Mike Jeffers (Williams), who's now a security guard, gives a tour of the downsized facility to Senator Cook (Andrew Prine), the Senator's public relations person, Janine (Lori Loughlin), and a video crew. While Cook is posing for photo ops, Sampson's brigade storms the decom...