Ranger Andy Pickard and his partner, Logan Daggett, are sent to central Texas to investigate a series of killings and cattle thefts. The two biggest cattlemen in the area blame each other for the violence, but it seems to Andy that neither man may be guilty. The case is complicated by the rise of a gang of "regulators" - masked vigilantes - and the arrival of a notorious hired gunman whose employer is unknown.

Rather than lose the favors of the beautiful Mercedes to the gringo Texas Ranger, the bandit Rojas vows to kill her. With the help of the Ranger's friend, Mercedes escapes into the desert -- but Rojas and his band of cutthroats are close behind.

Matt Talbot was a scout with Sharp Grover and Bill Comstock at a parley with Cheyenne chief Bull Bear along the Solomon River in western Kansas. It was 1868, and the army was concerned about an uprising among the young braves. Comstock was so confident that the trio arrived unescorted. The chief would tell them nothing, but granted them safe conduct out of the camp - until the sentinels were replaced by a band of hostile braves who attacked them,...