Things are heating up in Churchill. The polar bears have arrived on shore weeks ahead of schedule, and the town is stunned to find a beloved dog mauled, presumably by one of the bears. Conservationists have a good idea of who is responsible, and it's a race against time to find the culprit before tragedy strikes again. Meanwhile, local guide Kelsey Eliasson tries to establish a new and unique tourist experience with potentially disastrous consequences.