Vincent's investigation leads him into a life-threatening situation, while Markus offers an alternative theory on what is plaguing Fortitude. Dan and Hildur launch a desperate hunt for Jason as the need to locate the mammoth carcass escalates and Eric and Yuri go head to head out in the wilderness. With events taking an unexpected turn in the Arctic community, Sheriff Anderssen must make a devastating decision.
Elenco: Richard Dormer , Sofie Gråbøl , Verónica Echegui , Sienna Guillory , Luke Treadaway , Darren Boyd , Mia Nielsen-Jexen , Björn Hlynur Haraldsson , Alexandra Moen , Björn Hlynur Haraldsson , Alexandra Moen , Michelle Fairley , Parminder Nagra , Robert Sheehan , Ken Stott .