A former MMA fighter and his brothers must rescue their kidnapped family from a dangerous crime syndicate after $50M of illegal diamonds gets stolen....
道格（大卫·田纳特 David Tennant 饰）和妻子阿比（裴淳华 Rosamund Pike 饰）带着三个孩子，一家五口自驾去遥远的苏格兰高地为道格的父亲戈蒂（比利·康诺利 Billy Connolly 饰）庆祝生日。他们的大女儿是一个总把重要事情记录在日记本上的严谨女孩，弟弟是一个酷爱读书的男孩，小女儿则是一个走到哪里都要带着她的两块大石头，随时跟它们说话的萌妹子。老爷子与道格的哥嫂同住，而哥嫂家暗藏的矛盾也不可小觑。父亲知道自己的病情将不久于人世，他早已厌倦了家人们的争吵，也不想参加特意为他准备的生日聚会。大人们都在紧张的筹备着父亲的生日。没想到的是，生日当天，父亲不顾家人反对，执意带着三个孩子去海边玩耍。而接下来发生的事情，不仅让沉浸在生日会欢乐气氛中的大人们难以置信，更会让你从搞笑喜剧的情节中瞬间出戏，转而面对残酷的死亡话题。...
Mary and Gary want to be 'normal parents'. But their house needs a werewolf-proof basement - can they ever be 'normal'? As much as they worry about the parents they're going to be, they worry what species of baby they're going to have....
