 U.S. Marshal Tom Kenyon (Tom Keene), with his sidekick pal Pierre La Faire (Frank Yaconelli) is sent to aid the valley ranchers who are being driven from their homes by a gang of terrorists. Tungsten has been secretly discovered and enemy agents led by Tip Wallace (William von Brincken using his WWII hide-out alias of William Vaughn) in cahoots with Jim Regan (Charles King), crooked foreman of the Allen (Steve Clark) ranch. Tom trails Regan to the gang s hideout and sends the recently-orphaned Donny (Donald Stewart) for the sheriff.