A research vessel disappears in the waters off Greenland. Pure coincidence or dirty conspiracy?

The attack of a Swedish oil research vessel and the kidnapping of its crew lead intelligence officer, Liv, to the small village of Tasiilaq to investigate. There, she discovers rising tensions among local officials, on the brink of signing a treaty to prevent harmful oil drilling in the Arctic. Phone and internet connections to the town have been cut, and witnesses are being killed, all it seems, to prevent the treaty from being signed.

"Thin Ice" tells of the consequences of climate change and the Arctic Council's quest to advance a nature conservation treaty to ban oil drilling in the Arctic. Negotiator Elsa Engstrøm wants to make the meeting a success, but the interests of the individual parties are far apart. In the middle of the negotiations, a research vessel suddenly disappears. On board was Viktor, a representative of the Swedish delegation and Elsa's colleague. Coincidence or terror? While the poker game for the contract goes into the next round, help from Sweden approaches: Viktor's intrepid wife, the policewoman Liv, takes over the investigation. Then more strange incidents occur that threaten to derail the negotiations.