Zoologist NIgel Marven embarks on a nine-month exploration of the wildlife that ekes out an existence in the extreme conditions of the Canadian Arctic. Marven begins his trek in Wapusk National Park on Hudson Bay, where he braves temperatures below zero to enjoy a breathtaking view of the Aurora Borealis. His journey ultimately takes him across the almost boundless tundra to the huge boreal forest that lies to the south.