Sheriff Cassidy Yates couldn't believe his eyes when he read the Wanted poster. His ex-deputy, and friend, Nathaniel McBain was both a wanted man and a member of Rodrigo Fernandez's ruthless outlaw gang. There's nothing worse than a lawman gone bad, and Cassidy knows it's his duty to arrest McBain. But when he finds him, McBain claims the Wanted poster is wrong and his true intention is to infiltrate Fernandez's gang and bring the outlaw to justice. Is McBain really working undercover? Only one thing is certain: when Cassidy learns the full truth about McBain's plan, it will test to the very limit the strength of his friendship and his duty as a lawman.