When the town sheriff of Pagosa Springs goes missing, his wife contacts Oliver Kross’ O.K. Detective Agency with instructions to find him. Kross puts Linus Sutton on the case. Buzzards wheeling high over the nearby river eventually point Linus in the right direction, but when he finds the sheriff’s body, it’s missing its head! Sutton needs to find the killer before he can strike again.
After a bloody robbery in St. Louis, the OK Detective Agency calls in their best detective, Jake Kemper, tasked to finding the robbers and put a stop to their depredations. Along with fellow detective, Oliver Kross’ beautiful daughter, Grace, he follows a trail of death and violence that leads them all the way back to Washington … and a man who thinks he’s untouchable.