故事发生在一个和我们的地球很相似的世界里，那里人们的灵魂变成灵神跟随自己。莉拉自幼（Dakota Blue Richards 饰）跟随身为约旦大学校长的叔叔一起生活，她热情、勇敢且富有正义心。一天科尔特夫人（nicole kidman 饰）要到北方去，希望莉拉能伴随身边。好奇的莉拉开心地答应。临行前叔叔交给她一个黄金罗盘，告诉她世界上只有一个人能读懂。莉拉从黄金罗盘中不仅能得到所问问题的答案，还了解到了自己的身世之谜。这一路上，科尔特夫人行为诡异，莉拉还发现在特尔特夫人的一份名单上赫然写着自己失踪朋友罗杰的名字！罗杰和其他孩子一样，被诱拐到极北之地成为科学试验品。莉拉找到时机逃跑出来，自己动身前去拯救罗杰……It was no ordinary life for a young girl: living among scholars in the hallowed halls of Jordan College and tearing unsupervised through Oxford's motley streets on mad quests for adventure. But Lyra's greatest adventure would begin closer to home, the day she heard hushed talk of an extraordinary particle. Microscopic in size, the magical dust--discovered in the vast Arctic expanse of the North--was rumored to possess profound properties that could unite whole universes. But there were those who feared the particle and would stop at nothing to destroy it. Catapulted into the heart of a terrible struggle, Lyra was forced to seek aid from clans, 'gyptians, and formidable armored bears. And as she journeyed into unbelievable danger, she had not the faintest clue that she alone was destined to win, or to lose, this more-than-mortal battle...