Dan Hammond, a stagecoach owner oppossed to Idaho becoming a state, secretly dispatches raiding parties throughout the territory to create chaos. They are opposed by a hero known as the Black Whip. The original Black Whip was Randolph Meredith, owner of a local newspaper. After he was killed, his sister, Barbara, took his place, demonstrating the same amazing fighting prowess. As the Black Whip, Barbara proved to be a more capable rider, gunfighter and fist fighter than most men. She is also a master with the bullwhip, with she wields along with her six shooter.