New fathers investigate the death of a young family. When a sailboat carrying four bodies washes up on the Leeward Coast of O'ahu, openly gay Honolulu homicide detective Kimo Kanapa'aka, on loan to the FBI, must discover what sent this young family and their deadly cargo on a dangerous trans-Pacific voyage. Leaving behind his partner and their infant twins, Kimo must work with his police cohort Ray Donne to unravel the forces that led this family to their deaths. From Hawaii's sunny beaches to a chillly island in Japan to the Pacific Northwest, Kimo and Ray step far out of their comfort zones to confront an evil much greater than any they've investigated before.