Nothing ever goes as planned... That's what Steve Wolf is starting to believe after a carefully planned appeal to clear his name-an appeal his high-priced lawyer assured him was a slam-dunk-mysteriously disappears from the Military Court of Appeals docket. Disappointed, Wolf considers joining his friend and mentor, Big Jim McNamara, down at the border doing security work. But when a federal agent unexpectedly reenters Wolf's life, he brings with him a proposition this ex-Army Ranger is hard-pressed to refuse. All Wolf has to do is assist in an undercover operation by pretending to be associated with a hard-core motorcycle gang called the Devil's Breed, and his appeal will be back on track. There's just one catch-the mission is to stop an international human trafficking and drug ring that is controlled by a powerful Mexican cartel and led by an enigmatic and legendary figure known as El Tigre. To complicate matters more, Wolf must accomplish all of this while being stalked by a foe from his past. On a sudden collision course with murder, kidnapping, and disaster, Wolf finds himself in a race against time and one question plaguing his mind-will he risk it all to save the life of a man who once saved his?