When the long winter night falls in Ennis, Alaska, the eight men who operate the Tsalal Arctic Research Station vanish without a trace. To solve the case, detectives Liz Danvers and Evangeline Navarro must confront their pasts and the dark truths lying underneath the Arctic ice.

Partner detectives investigate a macabre crime involving two missing children in the heart of the Ozarks, Arkansas. The story spans three decades.

When California Highway Patrol officer and war veteran Paul Woodrugh discovers a crime scene, it attracts Vinci Police Department detective Ray Velcoro and Ventura County Sheriff's Office CID Ani Bezzerides to the investigation. Also involved is Frank Semyon, a career criminal and entrepreneur, who is married to Jordan.