After being fired for drinking on duty, former California detective Kenny Marquette takes a job as a uniformed security guard at Grafton-Keating, a local defense plant. His life is suddenly turned upside-down when he finds a broken lock while making his rounds. Shot and nearly killed after going inside to investigate, he later learns that the man who broke into the plant's "think-tank" was after the blueprints for a laser device designed for the U.S...