Season 1

February 19, 2015

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

February 26, 2015

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.

March 5, 2015

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

March 12, 2015

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.

March 19, 2015

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.

March 26, 2015

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.

April 2, 2015

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.

April 9, 2015

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