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Episode 1

Episode number: 1

Overview: In the remote Arctic town of Fortitude, two children make a remarkable find, while the discovery of a horrific crime brings a new arrival to the island that complicates Sheriff Dan Anderssen’s investigation.

Episode 2

Episode number: 2

Overview: Sheriff Anderssen and the police close in on their murder suspect, while DCI Morton follows a different line of enquiry.

Episode 3

Episode number: 3

Overview: Dan and Frank go in search of a suspect; however, Dan's feelings for Elena are threatening to overwhelm him. Morton, meanwhile, uncovers a new piece of evidence.

Episode 4

Episode number: 4

Overview: Following Dan's loss of control, Morton takes over the murder investigation. Elsewhere, Elena's mysterious past is about to catch up with her.

Episode 5

Episode number: 5

Overview: Shock waves reverberate around Fortitude as the killer is revealed, while Morton tunes his attention to the death of a scientist on the island months earlier.

Episode 6

Episode number: 6

Overview: While Morton uncovers new information about the death of Billy Pettigrew, Hildur makes a heart-breaking discovery. Another gruesome event occurs in Fortitude.

Episode 7

Episode number: 7

Overview: Panic sweeps through Fortitude as news of the second attack spreads. Dan and Morton must work together while Frank hopes the latest events will exonerate Liam.

Episode 8

Episode number: 8

Overview: While Frank takes the law into his own hands, DCI Morton closes in on the truth about Pettigrew's death. Vincent and Natalie also make a discovery.

Episode 9

Episode number: 9

Overview: DCI Morton pursues Henry Tyson into the Arctic wilderness in search of the truth, while worrying test results force Governor Odegard to take drastic action.

Episode 10

Episode number: 10

Overview: In the penultimate episode, the truth about Billy Pettigrew is revealed. In the lab, Natalie and Vincent probe the cause of the disturbing events in Fortitude.

Episode 11

Episode number: 11

Overview: The chilling thriller concludes with a dramatic and emotional finale. Vincent faces a life-threatening situation, while Dan must make a devastating decision.