Federal Agents Tipton and Bridger have been sent to Wyoming where the vote on statehood is imminent. Plummer and his gang are out to make sure the vote fails. When Plummer's men kill Bridger, Tipton fights on. He sends fake telegrams that trap some of Plummer's men. Then he organizes the ranchers and on election day they descend on the town barricaded by Plummer's gang.

John Mason returns to the Sally Ann mine to claim his half share. Janet Cater also returns although her father lost his half share to Joe Ryan. Ryan and his gang are also there to get the gold. A mysterious Phantom is also present. Mason's plan to expose Ryan as an outlaw and to force him to turn his share to Janet works. But when distracted by the Phantom, John is made a prisoner by the gang.