In Bait for the Trap, the Lone Ranger and Tonto ride across the rugged plains of the West, responding to the sound of gunfire near a stagecoach. They arrive at the scene of a violent robbery where the driver and guard have been shot, leaving only an old man inside the stage, who has erected a barricade to protect himself. The old man, claiming to have defended himself against the outlaws, raises suspicions about his true role in the incident.