Hit Finnish series Walter Presents: ‘Arctic Circle' will launch on Channel 4 in February 2026.
The series stars Iina Kuustonen, Pihla Viitala and Venla Ronkainen. It is created by Olli Haikka, Petja Peltomaa and Joona Tena and the new season features five episodes.
In the frozen stillness of Lapland’s Polar Night, when the sun doesn’t rise for weeks, Chief of Police Nina Kautsalo struggles to balance her demanding job while raising her children, Santeri and Venla. When the rare Eiscat comet blazes across the endless night sky in its first appearance in two thousand years, it draws scientists from around the world to Ivalo for an international conference.
After the FBI warns of a potential threat, Nina’s former boss, Jaakko Stenius, arrives to lead a covert investigation with her. As they dig deeper, chilling links emerge between the comet and a fanatical sect determined to fulfill an ancient prophecy before the comet disappears again.
Walter Presents: ‘Arctic Circle' Season 4 will launch on Channel 4 on 9th February 2026 at midnight. The series will be available as a boxset on C4 Streaming from 6th February 2026.

