A 400-year old national treasure painting will be exhibited for the first time in Taipei!

Jay, the hot-shot security guard in charge of the painting's safety, is busy preparing for the event, when his life is turned upside down by a bumbling tourist from Beijing-Ocean. Ocean, who also works as a security guard in his own neighborhood, wins a raffle prize and is on a tour to Taiwan. While visiting the museum, he becomes the only witness to the theft of the painting by international crime boss Z.

Jay forces Ocean to join him on the quest to retrieve the painting. While on the road, the two guys are constantly at each other's throats, but eventually learn to put aside their differences and work together as a team. Realizing that the painting has been misplaced as luggage in Ocean's tour bus, Jay and Ocean chase after the bus, fending off Z's female assassins- V and M. A spectacular fight on the highway takes place as all mayhem breaks out.