The BEST episodes of Arctic Circle
Every episode of Arctic Circle ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Arctic Circle!
Arctic Circle is set in the unforgiving polar region, amidst the icy landscapes of Finnish Lapland. After Nina Kautsalo, a Finnish police officer, finds a dying prostitute in an old cabin in the wilderness, the ensuing criminal investigation takes a surprise twist when a deadly virus is discovered in the prostitute's blood. However, when Thomas Lorenz, a German virologist, travels to Lapland to investigate the virus, he and Nina suddenly find themselves in the middle of an exceedingly unusual criminal investigation that ends up forcing them outside the law.
#1 - Parents
Season 2 - Episode 6 - Aired 1/16/2022
Nina drives back to the monastery with her father. Dad tells Nina what happened when Aava died. After reaching the monastery, a surprising turn forces Nina to save Kajante personally.
#3 - Predator
Season 1 - Episode 7 - Aired 12/28/2018
Nina arrives at Hamari’s house, where she is surprised by Raunola. He ties her up, sets the house ablaze and leaves her to die, before he heads to the hospital to fulfill the mission Cevikovic gave him in Murmansk --- the murder of Irina.
#4 - God is Good
Season 1 - Episode 5 - Aired 12/28/2018
A pregnant woman from a local religious Laestadian sect arrives at the health center but Thomas’ attempt to deliver her baby results in tragic consequences. In Russia, Raunola agrees to help Cevikovic.
#6 - Catch
Season 2 - Episode 3 - Aired 12/26/2021
The tailbone found by Nina and Viktor leads them to the desert, where they end up witnessing a human hunt. However, the police are caught. The director of the secret society invites them to dinner.
#7 - An Eye for an Eye
Season 1 - Episode 4 - Aired 12/28/2018
Nina and Thomas comb through the list of Marita’s sexual partners and focus in on a peculiarity in the year 2012, which they are intent to ask her about. Meanwhile, in Russia, Raunola is captured by the mysterious Maxim.
#8 - Johdatus (Introduction/Approach)
Season 4 - Episode 5 - Aired 1/29/2025
Nina finds out about 40-year-old events and who the last representative of the Taimenen family is. Jarmo and Esko drive to the wilderness church. Tuomas kidnaps Santer. A desperate Nina decides to trust the guidance.
#9 - Exposure
Season 5 - Episode 1 - Aired 3/31/2026
When an ordinary Fennogrid employee stumbles upon a murder scene, she is forced into a crime with no way out. Nina launches a murder investigation, unaware that it is connected to a cyberattack that is about to begin.
#10 - Carriers
Season 1 - Episode 8 - Aired 1/4/2019
A man named Marcus contacts Thomas and Nina to describe his reason for seeking revenge on Cevikovic. The incident he describes, which occurred during The Bosnian War, gives them insight into not only the virus but also Cevikovic’s warped intentions. Nina's daughter Venla is taken ill.
#11 - Guilty
Season 2 - Episode 5 - Aired 1/9/2022
Nina and Viktor investigate the murder of the old Lahti, because only by proving that Kajanne did not murder his wife, Nina believes that it is possible to save her from Ordo's captivity. Nina gets to know her father.
#12 - A Distant Guest
Season 4 - Episode 1 - Aired 1/1/2025
Nina continues as Ivalo's police chief. Her son Santeri is with her. Stenius comes to ensure security for an international conference. Nina investigates a major accident that turns out to be a mass murder.
#13 - Double Trojan
Season 5 - Episode 4 - Aired 4/22/2026
Lakkala's murder is linked to a cyberattack. Alvar Saarnio's updated Ivalo backup disk is revealed to be a Trojan horse. Vagan hijacks electricity distribution: Finland goes dark one city at a time.
#14 - The Storm Rises
Season 1 - Episode 3 - Aired 12/21/2018
Nina tries to elicit a confession from Raunola for three murders, while Tomas continues testing pregnant women. However, when they try to test the women at an infamous ‘prostitution bus,’ they find themselves face-to-face with an uncooperative guard.
#15 - Traces in the Snow
Season 1 - Episode 2 - Aired 12/21/2018
Authorities locate Raunola’s snowmobile but he remains missing. Meanwhile, Nina is ordered to meet with Thomas and assist with the investigation into the Yemeni virus. As a result, all pregnant women in the area are ordered to get tested.
#16 - The First Victim
Season 1 - Episode 6 - Aired 12/28/2018
Irina is only willing to talk to Nina, as she opens up her past as a sex slave to a Russian oligarch and the events that brought her to Finland. But, after ratting out one of her former captors, Irina becomes terrified that he might be after her.
#17 - Justice and Fairness
Season 2 - Episode 4 - Aired 1/2/2022
Nina and Viktor manage to escape from the monastery. Nina promises to return to Kajante. Russian police lead promises to arrest hunters. Nina is shelved because she had left for Murmansk without permission.
#18 - Murmansk
Season 1 - Episode 9 - Aired 1/4/2019
Nina informs the strike team that they have a very small window to complete their task. As they infiltrate Cevikovic’s alleged Russian address, they release they’ve walked straight into an ambush. At the hospital, Venla’s condition gets worse.
#19 - Return
Season 3 - Episode 1 - Aired 10/4/2023
Nina Kautsalo has returned to Ivalo, she is becoming the new police chief. When the local pharmacist is found murdered, Nina gets to investigate her last case with her old partner Aikio.
#20 - Newest Police
Season 2 - Episode 1 - Aired 12/19/2021
Nina lives in Rovaniemi due to Venla's school and her mother's cancer. A former hockey player once accused of murdering his wife disappears. Nina, a prostitute previously rescued by Nina, is contacted.
#21 - Publication
Season 3 - Episode 6 - Aired 11/8/2023
Nina grapples with her own personal choice. Pharada gets ready for the launch event of their new car. When Nina finally discovers the secrets from the past, she has to race against the clock to stop a murder that has not yet taken place.
#22 - A Find
Season 3 - Episode 2 - Aired 10/11/2023
The secret of the murdered pharmacist leads Nina to investigate the international car testing in Ivalo. She encounters the American engineer Brendan she saved some years ago. Hamari is out of prison and stumbles upon the test car.
#23 - Burglary and Theft
Season 3 - Episode 5 - Aired 11/1/2023
Pharada security chief Walter continues their serious search of the tests car. Nina embarks on a reckless rescue attempt. Marita is about to collapse under her construction project. Perttu comes to a desperate conclusion.
#24 - Venla
Season 1 - Episode 10 - Aired 1/4/2019
Nina is unconscious after crashing her snowmobile. Thomas manages to pull her onto his but with angry Russian officials pursuing them, and his vehicle low on gas, he is desperate to cross the border back to Finland.
#25 - Cellar
Season 1 - Episode 1 - Aired 12/21/2018
A Finnish police officer discovers a dying Russian sex worker being held captive in a farm cellar, carrying a deadly virus. Meanwhile in Helsinki, the case comes to the attention of the European Center of Disease Control and its German virologist.
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