灰熊堡垒(2011)

《灰熊堡垒》

剧情内容介绍

灰熊堡垒原名：Fortress Of The Bears，

Part of the massive Tongass National Forest, Admiralty Island in Southeast Alaska supports the largest concentration of bears anywhere in the world. Sustained by a wealth of salmon streams, isolated and protected by their environment, some 1,700 Alaskan brown bears are part of a unique circle of life that has played out here for centuries.