Season two of the Arctic-set thriller will see Dennis Quaid, Parminder Nagra, Michelle Fairley, Robert Sheehan, and Ken Stott join the cast. Citizens living in Fortitude, an Arctic town hailed as the safest place on Earth, are rocked to the core by the murder of one of their own. A detective is quickly flown in from out-of-town to assist the local Chief of Police with the investigation of the town's first-ever violent crime and the two men must work together despite deep mistrust.