When the annual Sealift enters the Arctic, it faces the worst ice in years. Global warming has dumped tonnes of glacial debris into the shipping lanes trapping the Sedna Desgangnes.
The Sedna gets a lift from a new face; a Sealift rookie leads the big ship to his village.
A massive flood threatens cargo and the Sedna. Taiga makes a ship-to-ship transfer.
The Sealift fights to reach Canada's most northerly town Grise Fjord.
The Sedna races to escape the High Arctic; a northern town bets big on the Sealift.
