This article is a continuation of the TV series On the Go. It tells the story of Yang Muci and his brother Rongchu. In fact, it has little connection with the plot of the TV series.
General synopsis of the TV plot: Yang Muci, a spy lurking within the Kuomintang, was shot dead by the Japanese army in order to save his brother from danger. Later, his brother inherited his younger brother's last wish and teamed up with Yu Xiaojiang, the leader of the second underground group who was also Yang Muci's instructor at the military academy. Rongchu gave up his beloved and Yashu for his younger brother, while Yashu and the eldest son of the Rong family moved to Chongqing to take refuge. Eight years later, the Anti-Japanese War ended. When Rongchu set off for Chongqing to find his true love, he met Aci, a mysterious man who looked the same as himself, and the story unfolded from there.