Michael Carr

Lt. Clark alerts Earp about a renegade group of Pawnee who attacked him over a shipment of fake guns and becomes their captive when attempting negotiations; Earp must track down the guns' seller before the Pawnee execute Clark.

Having caught one of Mr. Brother's killers, Earp looks for the three still at large, meeting an over-helpful Army lieutenant who hinders his search; one of the killers, disguised as a corporal, tricks a patrol into confronting a group of Cheyenne.

A Cheyenne chief named Bullhead races a pony against Milt Canyon and wins, but in a negotiation following the race, Canyon forces Bullhead into a deadly confrontation, and Earp must bring the chief to trial for murder while holding off a lynch mob.

Wyatt's feud with the Clanton Gang continues.

Earp and Bat team up with the Texas Rangers to capture the remaining members of the Dry Gulch Gang who killed Mr. Brother, bringing one of the indicted members with them as bait.

A killer must be brought back into the United States for trial.