Plot Summary:U.S. Marshal Rocky Lane (Allan Lane) is dispatched to round up a gang selling "protection" insurance to local ranchers and town businessmen. The gang, led by sneaky , Jim Crail (Stephen Chase), ambushes Rocky on his way to meet stagecoach line owner Nuggett Clark (Eddy Waller), but Rocky gets away but loses his identification papers in the process. This makes for some complications in his investigation.