Winter has fallen on the South Pole. A small team, known as the Winterers, will remain at the Polaris VI Antarctic Research Station to continue their innovative research, a crucial part in the fight against climate change.
Cast: John Lynch, Katharine O'Donnelly, Alexandre Willaume, Richard Sammel, Tomohisa Yamashita, Laura Bach, Álvaro Morte, Sandra Andreis, Hannes Fohlin, Andreas Rothlin Svensson, Chris Reilly, Tom Lawrence, Mónica López, Amelia Hoy, Philippe Jacq, Olga Wehrly, David Luque, Shona McHugh, Liliana Cabal
Johan realises they've been searching in the wrong direction all along. He urgently redirects the search for his missing wife, which can resume after the storm has finally passed.
The survivors head to the burnt out station of Polaris V hoping to salvage communications equipment. But the mystery deepens. Did the death of a Polaris V scientist lead to the events of today?
Arthur reveals that the body they found buried in the snow doesn't belong to any of the Polaris VI. It appears to be from a failed mission that ended in tragedy.
Tension mounts with two survivors telling conflicting stories. Who is to be believed? Meanwhile, the reconstruction of events continues, with one of the members of Polaris attempting to signal for help from a neighboring station.
Johan continues to drill Maggie for information on Annika's whereabouts. The summer team tries to find clues of what could have happened during the winter, unveiling a first possible suspect: Ramon, the winter cook.
A small scientific team remains isolated during the Winter at an Antarctic Research Station to continue their research in the fight against climate change. When spring comes, the entire team are either dead or missing