Zak and Zoe fly to Alaska after Zoe is asked to deliver a search and rescue dog to a team who is desperate for some canine help. Within hours of arriving in the isolated little town, Zoe stumbles onto a murder scene where everything must be questioned because nothing is exactly as it seems. When a second body is found and a five year old cold case is reexamined, things go from complicated to bizarre. Meanwhile Levi and Ellie are home in Ashton Falls dealing with complex emotions as they solve their own thorny mystery.