When Li Xiao Yu (Li Chen) decides to help casino swindler Qiu Yong Bang (Wang Qian Yuan), his peaceful days come to an abrupt end. Xiao Yu is arrested as the main suspect for harming the casino owner, while his girlfriend Wen Wen (Shi Chun Zi) is abducted by traffickers. Xiao Yu asks Yong Bang to help him rescue Wen Wen, not knowing that the kidnappers are actually Yong Bang’s partners. When he finds out the truth, he becomes a spy working for the police and chases a Chinese tourist bus that was abducted by Yong Bang’s group. Among the abducted people on the bus is surgeon Jian Ni (Ora Yang), a brave woman who will help Xiao Yu during the seven-day chase.