In Northeast China in the 1990s, Tietou (played by Jackie Chan) and the girl Xiuxiu (played by Xu Jinglei) were in love. Soon, Xiuxiu returned to Japan as an orphan from World War II and was never heard from again. Tietou, who was worried about Xiuxiu, smuggled himself to Japan, took refuge with his fellow countryman Ajie (played by Daniel Wu), and lived in advance with a group of Chinese stowaways...