Frustrated by Billy’s ability to evade capture, Thomas Catron devises a scheme to lure Billy back for his arrest. The Regulators attack the jail while Billy, aided by Dulcinea, escapes once again.
The del Toboscos fail to repay their debt, leading to an ambush by the 7 Rivers Gang. Billy vows that he and the Regulators will take over Lincoln and clear out the thugs. But, there's a new Sheriff.
Billy and the Regulators turn McSween’s house into their HQ, and are supported by the Mexicans. A confrontation with the 7 Rivers Gang leads to a fusillade of bullets. Restoring peace seems futile.