Jim, a former Marine who lives a solitary life as a rancher along the Arizona-Mexican border, has his peaceful existence come crashing down when he tries to protect a boy on the run from members of a vicious cartel. When the boy's mother asks him to take her son to her family in Chicago, the two hit the road with the cartel's assassins in pursuit.

Tougher-than-nails landowner Jessica Drummond has ruled over her county in Arizona with such power that even the local sheriff won't stand up to her. And when gunslinger-turned-U.S. marshal Griff Bonnell and his brothers seek to restore law and order, they meet with harsh resistance, that is until Jessica falls in love with Bonnell. But when the man's brother is murdered and the two families become bitter enemies, Jessica's loyalty is divided, and...

A rancher on the Arizona border becomes the unlikely defender of a young Mexican boy desperately fleeing the cartel assassins who have pursued him into the U.S.