在这部山系野狼纪录片片中,位於東歐的喀爾巴阡山脈是歐洲碩果僅存的野生動物棲息地，除了有棕熊、野牛、野馬，更有大批狼群在山上聚居，因而有「狼山」之稱。此處位置偏遠 ，山勢險峻，加上氣候嚴寒，未被開發，因此仍保留著自然純淨的面貌。三位斯洛伐克的紀錄片工作者花費兩年時間，以不干預動物生活的方式，近距離 拍攝山上的動物，其中有六個月更是緊貼野狼群，捕捉牠們遷徙、覓食、尋找配偶等的生活片段。
As night falls, an ethereal mist creeps over a forest cover as old as the world itself. The primeval howl of a wolf echoes across the mountains, followed by another and yet another wolf. Down in the valley, a wisent turns swiftly, a deer runs off a little and a beaver swims into its hiding place. Only a bear waits in anticipation of sponging off the prey of the wolf. This is the story about the rebirth of European wilderness, in which the wolf, the wisent, the bear and other rare animals live as freely as centuries ago.
