U.S. marshal O'Brien, on his way to the town of Gunsight, is ambushed and relieved of his gun, his horse, and his identification by a mysterious outlaw gunslinger known as the Raven (Pawley). Trailing the outlaw, O'Brien finds him dying beside a poisoned water hole. When the outlaw dies,
O'Brien retrieves his own possessions, plus a letter of introduction addressed to Gleckler, a Gunsight outlaw leader. His horse also poisoned, O'Brien solicits a ride from parson O'Connor and his daughter, the lovely Oehmen, returning in their buckboard to Gunsight. Villains Bond and McDonald
attempt to prevent O'Connor from holding Sunday services in the town, but O'Brien interven...