At the beginning of the reform and opening up, a truck drove into the isolated mountain village, bringing news about the other side of the mountain. A pictorial full of city photos ignited the two teenagers' longing for the beautiful city. During the short vacation, the two teenagers, Qiangsheng and Fulai, decided to cross the mountains to see the beautiful city outside the mountains, and since then they began a magical journey. On the way, they met Xiaoya (played by Yu Na), a woman who escaped from marriage, and the three of them set off together. After many obstacles, they finally arrived in the city, and Xiaoya was about to take the train back to distant Beijing. At this time, Xiaoya's husband suddenly appeared and wanted to take her back. It turned out that Xiaoya was an educated youth from Beijing, and was forced to marry a farmer in the village due to life. But Xiaoya could never forget distant Beijing. After getting a return certificate and getting divorced, she resolutely got on the train to Beijing. Life in the city is always so bizarre and confusing. They met a young man named Long Jianguo (played by Zhang Hanyu) who came from the village. Wearing sunglasses and a windbreaker, Long Ge didn't look like a good person. His face always showed an imperceptible melancholy. Long Ge was very kind to them. Not only did he buy them new school bags, but he also sent them home. Later, Fulai stayed in the orphanage in the city, and Qiangsheng returned to the beautiful village...