Like many 9-year-old boys, Eli Braverman believes something menacing lives in his basement. When his older sister leaves him home alone one night, Eli discovers if this evil is real or all in his head. What Eli confronts may end up being far more terrifying than even his worst nightmare.</p>

遥想上一次惊心动魄的冒险已经远在六年之前，如今的哈罗德（约翰·赵 John Cho 饰）和卡玛（卡尔·潘 Kal Penn 饰）也已各自过上安定的生活，哈罗德成为了华尔街一名有为商人并已结婚，而卡玛还依旧住在当年和哈罗德合租的旧公寓。眼看圣诞将至，哈罗德的父亲和岳父决定前来一起过节，岳父还特地带来了他最钟意的一棵圣诞树。一天，卡玛收到一个写着哈罗德名字的包裹，他决意上门将其交给哈罗德，然而意想不到的事发生了，两人竟然无意中烧毁了岳父的圣诞树，为了在岳父发现之前找到一棵以假乱真的替代品，他们再次走上纽约</p>

Like many 9-year-old boys, Eli Braverman believes something menacing lives in his basement. When his older sister leaves him home alone one night, Eli discovers if this evil is real or all in his head. What Eli confronts may end up being far more terrifying than even his worst nightmare.

自上一次冒险已经过去了六年时间，哈罗德·李和卡玛都过着安静的生活，有了新的朋友和家庭。现在，他们在准备自己家的圣诞节。可是就在这个节骨眼上，卡玛收到了一个神秘的包裹。为了和自己的好朋友一起探秘，卡玛带着这个包裹来到了哈罗德的家。　　不过，事情的发展却变成了一出悲剧，他们不小心烧掉了哈罗德的岳父最钟爱的一棵圣诞树。为了不让老丈人发怒，他们发誓要走遍纽约，找一棵看不出来是赝品的替代品回来。可是，按照这两个人一贯的品行，这次的寻上找圣诞树之旅，怕又是个充满了意想不到事情的奇幻大冒险。