Longing for Mexico opens with what happened the night ex-Texas Ranger Otis "Mac" McFadden crept out of Amarillo rather than facing up to his friends and his responsibilities. When the captain won't allow Mac's friend, Wes Crowley, also a veteran Texas Ranger, to go after Mac immediately, Wes continues to battle Comanches, falls in love, and loses pretty much everything. He finally decides to leave the Rangers to track down his lifelong friend turned traitor. He must get the answers he deserves. During his search for Mac, Wes visits Mexico where he finds new friends but also a few new enemies. He is joined there by a close new friend from El Paso, Ben Iverson. Ben brings news of Mac's whereabouts and a job proposition for Wes. Come along to see what happens when Wes finally tracks down Mac in the midst of the Arizona Territory.