Although Chen in Canglang is a fictional character, his history is real. Through his story, the audience can truly experience the blood, tears and love of that era. Canglang takes the establishment and action of Canglang Commando as the main line, and reproduces the fighting process in Nanjing, Wuhan and Chongqing after the fall of Shanghai in 1937, including "killing traitors", "blowing up the airport" and "taking food from the tiger's mouth". It connects the real history in the form of chapters, which not only ensures the restoration of history but also improves the visibility of drama.