Showdown in the Blood finds Trace Ballard arriving in Denton City, the new boon camp at the end of the westward-reaching track. He has been brought in to bring law and order to a town out of control. Matters are complicated when he learns he will have to confront his brother and Bud Keyhole, the bully from his childhood days. In Spawn of the Gun Pack, Young Tom Kinnard, now known as Tom Brush, searches for Buck Hayes, the man who betrayed his father and whom Tom holds responsible for his death. But Buck has two brothers and they are not about to let Tom ruin their plans."