Lanky ranch hand Case Walker works in the hot sun digging post holes for a fence on the Texas side of the Mexican border when he gets wind of the one thing that could tug him to rush off on a brash and dangerous adventure--treasure. The gleam of silver lights his eyes. Casting his lot with traveling trader Gilberto Reyes, a man about whom he knows very little, Case climbs into the saddle of his bay gelding Buck and rides north across late 19th Century...