Old Man Clanton gives Sheriff Behan orders to run John P. Clum out of town. Clanton is afraid important people might see Clum's paper and the truth but Clum's hot temper may be his undoing by allowing Behan to sue and bankrupt him.
After Wells Fargo is robbed and an agent killed, Thacker pressures Earp to capture the killers. Earp refuses to take out a posse but Sheriff Behan likes the $10000 reward so he and Ike Clanton frame a local man but Earp learns the truth.
Earp learns Old Man Clanton is moving some of his stolen silver. Earp catches two of the gang and silver but in Tombstone Sheriff Behan releases the men saying they escaped. It is time for a showdown between Earp and Behan over the issue.
Earp's crackdown on crime in Tombstone is causing big problems for the Clanton gang which in turn is hurting the Ten Percent Ring in Tucson. Old Man Clanton learns there is a plan a foot to change things but he must be patient.
After a warning by Earp Marshal Fred White tries to take the pistol from a drunk Curly Bill Brocius. White's actions cause the gun to fire mortally wounding him. Earp a witness is forced to protect Brocius from a city lynch mob.
