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In 1995 wolves were resettled in Yellowstone. 70 years after their extermination, wolves restored an entire ecosystem which had been completely out of balance. Filmed over the course of one and a half years, the documentary follows the White Alpha Wolf and her Pack, the largest pack in the National Park and tells a unique success story. With surprises and unexpected setbacks. Their influence extends down the entire food chain, to the smallest insects. The vegetation, even the landscape changed.
