Tommy Lee Jones is QUINT, a shrewd and tough "professional thief" working for the government. He has hidden a computer disc containing vital evidence in a sleek, fast prototype automobile which is stolen by a sophisticated car theft ring in Los Angeles. QUINT, the owners of the car and the killers who want the disc back are forced into a high-risk raid on the impenetrable fortress of the car thieves in this taut, action suspense adventure.