Far north near the Hudson?s Bay, a pair of arctic foxes are busy caring for their new litter including little Kala. Lemmings are few this year and the parents must hunt relentlessly to feed the family. Hungry, Kala and her siblings must also deal with the swarm of mosquitoes while remaining alert to the threat of their new found enemy: the red fox. Global warming is attracting the larger fox north where he is invading the arctic fox?s territory and killing them in the process. The film tells the story of Kala over her first nine months of life, as she fights for her survival.