The world-famous "Rich Mountain and Water Painting" is treasured in the National Palace Museum in mainland China and Taiwan. This is the first time that it is exhibited together in the National Palace Museum in Taipei. International thieves have heard the news. An international treasure-stealing group from across the ocean sent two beautiful thieves to disguise as security guards to sneak into the Forbidden City and steal the scroll. When the thieves succeeded, they happened to bump into the young security guard Xiaojie (played by Jaycee Chan), and the two sides had a fierce fight. Just when Xiaojie, who was extraordinary in skill, finally got the upper hand and was about to capture the thieves, a mainland tourist who was visiting the Forbidden City "heroically saved the beauty" and let the beautiful thief go and subdued Xiaojie instead. When Xiaojie, who was dressed in plain clothes, finally convinced the other party that he was a security guard and the beauty was the thief, the tourist regretted it. It turned out that the tourist named Dahai (played by Xia Yu) was a community security guard from Beijing. At the same time, something more "oolong" than letting the thief go by mistake happened. Xiaojie was considered by the security headquarters to be an insider of the theft group, and Dahai found that the tour group's bus had disappeared and he had "left the group". Xiao Jie not only has to evade the police but also has to retrieve the painting to prove his innocence. Dahai, who has no relatives, is also regarded as Xiao Jie's accomplice. He has to find his tour group to prove his identity. Thus, two "loser" security guards from both sides of the Taiwan Strait began their "fleeing to the end of the world" journey in Taiwan...