The documentary UNDER THIN ICE tells the story of this extraordinary expedition. Viewers will travel on ice floes with Jill and Mario to Tallurutiup Imanga, also known as Lancaster Sound in Nunavut, Canada, where they will dive with belugas and narwhals in the open Arctic Ocean. They will follow them to Greenland's Disko Bay to explore the underside of icebergs and discover the luminescent world of algae. Back to Canada in the Naujaat region, they will swim with walruses and polar bears, the supreme predators of the Arctic.