NATURE

For thousands of years, wolves hunted buffalo across the vast North American plains, until the westward settlement of the continent saw the virtual extinction of these vast herds and their eternal predators. However, this ancient relationship was not lost altogether and continues uninterrupted in only one location — the northern edge of Canada’s central plains in a place named Wood Buffalo National Park. Today, the descendants of those ancient buffalo and wolves still engage in the epic life-and-death dramas across this northern land. Their story is captured in thrilling cinematic glory by a lone filmmaker who has followed them for more than 20 years.

Watch Cold Warriors: Wolves and Buffalo Preview on PBS. See more from Nature.