"California Badmen" is a exploration of little-known Western frontier gunfighters. Billy Mulligan, Sam Temple, Peter Olsen, Joe Dye, Bob McFarlane and those responsible for the Rancheria killings are brought back through the pages and taking their stand in Californian history. The riotous lives of these unique collection of mean men with guns spill over the California frontier and rival the likes of "Wild Bill" Hickok, Billy the Kid, and the Earp Family.