A Step into the Past is a Hong Kong television series adapted from Huang Yi's novel of the same Chinese title. Produced by TVB, the series was first broadcast on TVB Jade in Hong Kong in 2001. It tells the story of a 21st century Hong Kong VIPPU officer who travels back in time to the Warring States Period of ancient China. He is involved in a number of important historical events that leads to the first unification of China under the Qin Dynasty.