Based on the internationally best-selling novel by Jonas Jonasson, the unlikely story of a 100-year-old man who decides it's not too late to start over. For most people it would be the adventure of a lifetime, but Allan Karlsson's unexpected journey is not his first. For a century he's made the world uncertain, and now he is on the loose again.

　　美國獨立電影【親情難捨】在取得成功之後，劇中演員的境遇大不相同。傑西．艾森柏格接連演出商業(yè)鉅片【社群網(wǎng)戰】，成為好萊塢當紅巨星。女配角哈莉．菲佛則成為一片明星，開(kāi)始酗酒。禍不單行，在片場(chǎng)認識的男友也離她而去。為了鹹魚(yú)翻身，哈莉剽竊了男友的劇本，打算將自己的私生活搬上大銀幕，然而，日五影展報名截止日在即，為了取得電影資金，她不惜夥同助理崔西綁架了大明星班．史堤勒……

　　旅行者們一次錯誤的走錯方向，使他們成為奇怪小鎮上饑餓居民的盤(pán)中餐