Kate Switzer is put in charge of forming a team to investigate what killed a ship full of people on the Norwegian Sea, to do this she enlists the help of the entire group of coroners. On their way back to Boston, the plane suddenly flies into an unexpected storm, causing the plane to crash in the mountains. Woody and Bug set out on foot to try to get to the highest point and get radio reception to signal for help, but hit a roadblock when they reach an impassable mountain. In order to stay warm and keep busy, Jordan, Macy, Kate and Nigel decided to do what they do best, autopsies. While they are trying to figure out what mysteriously killed these people, they all secretly wonder if they will be rescued.