Kimble's a dispatcher at a Colorado trucking company. He also keeps track of the truckers' hours. Gus, the owner, has a reputation for working his drivers and himself past the legally allowed driving hours because he needs money. He's supporting a widow and her two children out of guilt because her husband died in a truck accident while working for Gus. Soon, the lonely widow learns that Kimble is single and becomes predictably infatuated. Meanwhile, Gus is so short of money that he can't afford the insurance premium on his trucks and he's in danger of losing his business. Gus gets an offer to commit insurance fraud to make a quick buck. He's tempted because then he can get his business back on track and get rid of the widow with one big payoff. Kimble likes Gus and tries to talk him out of it. Later, he learns that the authorities suspect something and rushes to warn Gus.