Picking up where the Guns of Powder River left off, Britt and Doc are now in California and on their way to visit Britt father, retired U.S. Marshall Dan Mac Masters. But in the nearby mountains, two wily prospectors with gold fever get into trouble when the infamous outlaw Angel Garret and his gang of thieves attempt to steal the gold. This epic western features the performances of Rex Trailer, New England favorite cowboy, and his banjo-strumming sidekick, Sgt. Billy, who were famous for the weekend children show Boomtown, which aired on WBZ-TV in Boston, Massachusetts from 1956 to 1974.