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Go in search of an undiscovered tiger population rumored to be hidden in the Himalayan kingdom of Bhutan. This pristine country of lush forests, clear rivers and icy mountains could hold the key to safeguarding the future for these big cats. But first, the team must trek across Bhutan's wildest terrain and face its extreme weather- pushing the expedition to its very brink. With cameras strategically placed, the team is closing in on capturing key evidence of the tigers said to be living here.