In Alaska's Mat-Su Valley, Trooper Joseph Hess is called in to investigate an alarming discovery: campers have found remains that appear to be human toes and hands. Hess must use knowledge from the academy to decide if these are the real deal, or misidentified animal parts. Across the state in Juneau, troopers Jake Abbott and Aaron Frenzel head out on boat patrol to Prince Cove, a popular spot for king salmon.