故事讲述的是年迈古稀的老父亲柳德胜寡居在重庆的一家高端养老院里,他年轻的时候叱咤码头,却因为弄丢了小老四柳阿吉,导致幸福的家庭陷入囫囵。几十年后,三个子女事业有成,老大柳阿哲成了赫赫有名的成功学讲师,外企金领柳彩霞正热火朝天地忙着移民,北漂导演柳阿皓整日沉迷在艺术的世界里。他们虽为兄妹,却并无交集,亲情深陷沟壑。直到一通来自拉萨的电话,突然让柳德胜死水般的生活燃起新的希望,他决定说服子女陪自己踏上远方的路……A widowed old man suffering from an incurable disease, in order to maintain ties of blood, led the disintegrated family members to Lhasa, Tibet, to search for his missing forth son, but whether the short journey can awaken their long-lost family affection?