While fighting in Afghanistan, Major Grant Barrett receives devastating news: his brother and sister-in-law have been murdered in Scarlet Falls, the sleepy suburb of Grant's youth. Emotionally scarred from war, the career soldier returns home on emergency leave to temporarily care for his orphaned nephew and niece. But when someone tries to kidnap the kids and their teenage babysitter, Grant knows it's not a random act... and neither were the murders.

After the devastating loss of her husband in Iraq, Morgan Dane returns to Scarlet Falls, seeking the comfort of her hometown. Now, surrounded by family, she's finally found peace and a promising career opportunity - until her babysitter is killed and her neighbor asks her to defend his son, Nick, who stands accused of the murder.

When Detective Seth Harding responds to shots being fired, he faces a familiar sight: a double homicide. However, he is shocked to find a young boy chained in the basement. The terrified child refuses to speak, but Seth knows he is the key to something sinister. Reluctantly, Seth calls the only social worker he trusts with the traumatized boy - his wife. Carly is recovering from her own trauma suffered on the job, but she can't turn away from this case, not from another child in trouble.

Eleven years ago, the Co-Ed Slayer murdered nine female college students on the Oregon State University campus. Lacey Campbell barely survived his attack, but he killed her best friend, Suzanne, whose body was never found. Now a forensic odontologist analyzing teeth and bones for the state medical examiner, Lacey is devastated when she identifies Suzanne’s remains at a crime scene. She finds comfort in the arms of ex-cop Jack Harper, and sparks fly between them.

FBI Special Agent Cate Wilde is back home on a remote Pacific Northwest island when she gets the call: a teenager’s skeletal remains have been found on a nearby island. Together with Tessa Black, a childhood friend turned local deputy, Cate confronts dreary weather and bleak leads to make sense of the death. The complications pile up as Cate is distracted by the coroner on the case - and by nagging memories that draw her two decades into the past. The remains suggest eerie similarities between this victim, and Cate and Tessa’s friend Samantha, who disappeared when she was fourteen.