女孩六月（王艺嘉 饰）从已经过世的爷爷手中得到了一把价值连城的藏刀，为了寻找藏刀真正的主人，六月踏上了旅途。藏刀再现于世的消息很快就走漏了，包括弓箭（杨梓铎 饰）在内的很多文物大盗闻风而动。为了得到藏刀，弓箭隐瞒了自己的真实身份，偷偷的接近六月，两人结伴而行，没想到一路上遇到了数不清的挫折和意外，在共同克服这些艰难险阻的同时，六月的天真和善良也在慢慢改变着弓箭，令弓箭打消了抢夺藏刀的念头。
哪知道就在这个节骨眼上，藏刀失窃了，而弓箭原本的意图也被曝光，愤怒和失望之中，六月和弓箭决裂了...
A young woman named Liuyue travels to Tibet with a Tibetan knife left by her late grandfather, hoping to find someone. The immense value of the knife draws the attention of an artifact trafficker named Gongjian, who schemes to accompany Liuyue and win her trust. Meanwhile, other local figures get wind of the situation and secretly pressure Gongjian’s friend into forcing a deal. As they journey deeper into Tibet, Gongjian’s interference leads them further off course, and they face a series of unexpected hardships—getting lost, running out of food, and sleeping in the wilderness. The journey is a chaotic mix of mishaps and humor. Although Gongjian initially views the knife as his ultimate goal, the trials they share transform their relationship; Liuyue’s innate kindness gradually shifts his own outlook on life. Gongjian arranges for a young local Tibetan boy he knows to pose as the contact for the knife; however, the plan backfires when the boy—having taken the box containing the knife—vanishes. By the time Gongjian regrets his actions and intends to return the knife, it has already disappeared. The inevitable rift between Liuyue and Gongjian widens, and with the interference of others, their relationship—like the lost knife—becomes irretrievably broken. Ultimately, determined to win Liuyue back, Gongjian sets out on a resolute journey, and the knife miraculously finds its way back to its rightful owner.
