Justice continues the story of Caitlyn Reed and her canine partner, Renegade, both deputy US Marshalls. While it is a continuation, it can be read stand alone as there’s enough back story to fill in otherwise gaps. However I recommend you start at the beginning to see how Caitlyn grows, both personally and professionally. Woven throughout Justice are the back stories of Caitlyn’s romance with Clay, the blossoming romance between Caitlyn’s brother Reed and her best friend McKenzie, precious problems with meth dealers popping up again, her mom’s plans, heartbreak and so much more. This story wraps up nicely yet there is more to come. This is a thrilling book and series, well worth your listening time.