Chen Wangdao, who returned from studying in Japan, took over the task of translating the "Manifesto of the Communist Party" and changed the trajectory of his life. Historical figures such as Chen Duxiu, Yu Xiusong, Shi Cuntong, Jing Hengyi, Dai Jitao, Cai Muhui, etc. appeared one by one. After the turbulent changes of the times, friends sacrificed or left, Chen Wangdao faced the test of life and death choices.