Watch the full-length episode at
https://video.pbs.org/video/2332594879 (US Only)
Breathtaking footage of a wolf pack going after a herd of bison in Canada's Wood Buffalo National Park. "Cold Warriors: Wolves and Buffalo" premiered February 2013 and is part of the 31st season of the Peabody and Emmy award-winning series produced by Thirteen in association with WNET for PBS.
