Veteran wildlife conservationist Bradley Trevor Grieve leads an elite team into uncharted Alaskan wilderness in search of Grandfather - a bear locals believe is the largest to ever roam the earth.
EPISODE 1
Fortress of the Bears
A team ventures deep into the Alaskan wilderness in search of a bear believed to be the largest to roam the earth; as they track it deeper into its deadly domain, they discover that their greatest challenge will be surviving the expedition.
Bradley Trevor Greive
Patrick DeLuca
