During the prosperous Tang Dynasty, all nations came to pay tribute. The Tang emperor held a Cuju competition to show the prosperity of the country. At this time, in the bustling Chang'an City, the people of Longmen Inn started another busy day: the proprietress Tie Zhanggui (played by Huang Yi) used the Cuju competition to deduct employees' wages, the money-loving Lao Baoan (played by Sun Xing) embezzled money from the horse racing field, the chivalrous sister Furong (played by Ying Caier) caused trouble again, and the inn waiter Bai Shatang (played by Qiu Shengyi) accidentally participated in the Thief Saint Challenge Competition and won the Thief Saint Medal from the Thief Saint Sun Wufan (played by He Jiong). On the other hand, the emperor agreed to the request of the Western visitors and sent the marathon champion to deliver the holy fire to the country controlled by the monster. Tang Sanju (Xu Zheng), who admires Tang Monk, is struggling to find a partner to go back to the West to seek Buddhist scriptures. At this time, Sun Wufan, who has lost his memory for a short time due to losing the stolen holy card, and Zhu Bajie (Xie Na), a waitress at Longmen Inn who aspires to become a dancer, meet Tang Sanju one after another. The three suffering people decide to go to the West together to solve their own problems. A fire at Longmen Inn makes the task of delivering the holy fire and everyone at Longmen Inn join this journey to the West...