Cheng Cheng and Yadan are two ordinary young people in the city, but they had an unusual experience this year. Cheng Cheng is a policeman. He likes motorcycles and always wants to buy a motorcycle to visit the scenery of Xinjiang. Yadan is a tour guide. She has a wish, which is to go to the Taklimakan Desert to explore the mysterious ancient city. Due to the appearance of the criminal Ding Hui, Cheng Cheng met Yadan by chance... Cheng Cheng missed the opportunity to arrest Ding Hui again and was suspended. For the dignity of the police, Cheng Cheng left the city alone and set foot on the land of the Western Regions to find Ding Hui. Yadan finally had the opportunity to go to the Taklimakan expedition she had always dreamed of with the expedition team. On the long road of pursuit, Cheng Cheng was not smooth. When he was helpless, Yadan appeared in front of him... Cheng Cheng and Yadan set out on the road together to find Ding Hui... On one side is love, and on the other side is the dignity of the police. Will Cheng Cheng give priority to love? What will be the fate of the three of them? ...