Alaska's Arctic National Wildlife Refuge, home to only a handful of people, is a harsh and lonely place. So when James Campbell's cousin Heimo Korth asked him to spend a summer building a cabin in the rugged Interior, Campbell hesitated about inviting his 15-year-old daughter, Aidan, to join him. Would she be able to withstand clouds of mosquitoes, the threat of grizzlies, bathing in an ice-cold river, and hours of grueling labor peeling and hauling logs?

But once there, Aidan embraced the wild. She even agreed to return a few months later to help the Korths work their traplines and hunt for caribou and moose. Despite windchills of 50 degrees below zero, father and daughter ventured out daily to track, hunt, and trap.

Campbell knew that in traditional Eskimo cultures, some daughters earned a rite of passage usually reserved for young men. So he decided to take Aidan back to Alaska one final time before she left home. It would be their third and most ambitious trip. The journey would test them, and their relationship, in one of the planet's most remote places: a land of wolves, musk oxen, Dall sheep, golden eagles, and polar bears.