[3] The story begins when a jobless man (Xu) and his doofus cousin (Wang) hold hostage the young employees (Li and Qiao) at a 24-hour supermarket, because the mart owner (Yang) had denied his lottery win.

At this moment, Li's goofy roommate Zhu Liao (Zhao Yingjun) who wants to record a funny prank video also storms in, wearing a pantyhose on his face and wielding a knife, but is quickly tasered down by He Sanshui.

He and Tire rope up everyone else in the soundproof back room—which has a complete Karaoke system—and taking their place behind the register begin to run the store, funneling the profits into their own pockets.

Wang suddenly returns to the store from her Mahjong games—obvious having lost all her money—and immediately begins to attack He Sanshui with a bag of weight before Tire tasers her down.

In an effort to boost sales He Sanshui decides to give 50% discount to all store items, and business quickly perks up after a taxicab chauffeur (Cao Li) helps spread the news to his colleagues.

With ¥3.50 to go before their ¥9500 goal (taking into account that Tire has eaten ¥118.10 of food), a Guanzhong dialect-speaking, gun-toting robber (Zhang Jiayi) on the run arrives to retrieve a diamond his partner left in the ice in the store freezer.

Unable to find his diamond he takes everyone hostage and is in the middle of having everyone strip, when Yaozi (Ye Qian)—the store's delivery man who has fallen asleep in the warehouse—barges out from the rear.