Duckweed

The year is 2022. 23-year-old Lang (Deng Chao) is the newly crowned champion of the National Rally Championship. The racer seems to have an infinite future ahead of him, but all he wants is to prove himself to his father, Zheng, whom he blames for his mother's death. After the race, Lang takes Zheng on a joyride, one that is abruptly cut short when they collide with a train. Lang wakes up and finds himself magically transported to 1998 Shanghai, where he meets a young Zheng (Eddie Peng) as well as his best friends, Xiao Ma and Liu Yi.