Joe and Cody are young Cree brothers who follow the caribou all year long, tucked into their dog sled with Mama and Papa. To entice the wandering herds, Joe plays his accordion and Cody dances, whirling like a young caribou.

They are so busy playing and dancing, they don't hear the rumble of the caribou. Bursting from the forest, ten thousand animals fill the meadow. Joe is engulfed; he can barely see Cody a few yards away. Their parents seem to have disappeared.

And yet what should be a moment of terror turns into something mystical and magical, as the boys open their...