Dr. Kate Morrison doesn’t know how or why someone would create human bombs that are triggered by touch. But when Sergeant Andy Wyles blocks Kate from touching the patient who collapses in her Vancouver ER, Kate joins the investigation to demand answers, regardless of the danger. As the two women work together to find those responsible for creating an army of human weapons, Kate finds it increasingly difficult to ignore her feelings for the fiercely protective and unrelentingly perceptive cop. The investigation escalates, and Kate gradually begins to trust Andy, not only with her safety but also with the difficult details of her past. With lives at risk and her heart on the line, Kate must search for a way to defuse the bombs and save her patients, even as she questions the intensifying connection between herself and Andy.

When a deadly virus surfaces in the small, wealthy town of Hidden Valley, British Columbia, Dr. Kate Morrison and Sergeant Andy Wyles work together to uncover the source of the outbreak. As the two women navigate their new relationship, Kate and Andy are also forced to navigate a highly political and increasingly panicked community. Still bearing the scars of her recent abduction, Kate is driven to discover how this virus attacks her critically ill patients while Andy investigates suspicions of bioterrorism. As the death count rises, Kate struggles with a crushing sense of helplessness, the pressure to keep the residents of Hidden Valley alive, and Andy’s growing concern that maybe Kate hasn’t yet dealt with her troubled past. The sequel to Trigger.

Andy can’t seem to stop worrying about Kate. Instead of obsessing over things she can’t control, Andy takes on a unique case involving a troubled troop of cadets from the RC MP training academy. The troop is tightly bonded, especially since the recent death of a fellow cadet. They are also hiding a secret, and Andy has been tasked with uncovering it. When Kate unexpectedly shows up as part of the team supporting the troop, Andy has to find a way to balance her job and her heart. As the conspiracy is exposed, a medical emergency brings Kate and Andy closer together even as the troop begins to fall apart. Follow-up to Trigger and Pathogen.