Jordan and Ivers join forces to investigate the unusual case of a woman who recently died---but who was presumed dead for six years. Meanwhile, Lily and Brandau scrutinize the death of their psychologist after the doctor dies during one of their sessions; and Lily goes into labor.

In the sixth-season finale, Jordan and her coworkers are in a plane crash in mountain terrain on their flight home after investigating the deaths of a shipload of people on the Norwegian Sea. As Woody and Bug travel on foot for help, the rest try to stay warm and desperately wait for rescue.