Trapped stars James Brolin as an casual shopper who is mugged in the men’s room of a huge department store. Rendered unconscious, Brolin awakens late at night, long after the store has closed. That’s when he discovers himself at the mercy of six vicious guard dogs, trained to tear apart any and all intruders. Instead of simply remaining in the bathroom until morning (that would be too logical), Brolin tries to outsmart his bare-fanged canine foes in order to make his way to the exit.