Book 1 of the spinoff series to the previous "Lone Wolves" novel series. This book tells of a heated feud between Aaron and a new, unique member of the railroad and how an unexpected guest and a dark presence threaten to tear two best friend's relationships apart.

Former DEA Agent and railroad employee Aaron Solomon, returns fresh from his encounters with a former coworker and his gang of thugs set on sabotaging the railroad infrastructure through terrorist acts. In Westbound and Down #1: Bad Blood, a new railroad rival emerges, taking Solomon by surprise and inspiring a heated feud that threatens to destroy a best friendship.

When more than twenty five grand's worth of copper wire is suddenly stolen from Aaron's criminal turned honest breadwinner older brother, Hutch, Aaron, and Terra must all work together to track down the culprit and bring him to justice in order for Kenai to retain his job and be rid of his incriminating reputation. And after a murder suddenly occurs on one of their trains, Aaron and his new and fresh prospective engineer, Iki Thompson must stay vigilant and do whatever they can to find out more about the suspected killer and ultimately delay him before he claims his next innocent victim.

In the shocking conclusion to the series, Hailey, Aaron, Iki, Kiri, and the rest of the entire Rogue Warriors group and the railroad find themselves in the midst of an all out war between a long time foe and his group of bloodthirsty terrorist thugs who intend to sabotage the railroad and destroy it from the inside out.