When did Chen Sanchuan know that Chen Qiushi was his father?

In the later period, Chen Qiushi discovered a lot. Both of them were surnamed Chen, and then he sent people back to Yinxianji for investigation. Sun, the fortune teller, was confirmed that his biological father and son Chen Sanchuan were dissatisfied with the criticism and secretly fled back to the third regiment. Yuan told not to embarrass Sanchuan all the time. Chen Sanchuan swore at Huang's grave that he must find the man who abandoned them. The play is adapted from Xu Guixiang's original novel See the World at Once. 1928 During the Great Revolution, Chen Qiushi embarked on the revolutionary road with the help of Zhao Ziming, a progressive young man, and was sent to Huangpu Branch to study military affairs. Thin, he has a strategic talent and grew into a general under the training of his mentor. Because of different beliefs, I finally parted ways with my mentor. When War of Resistance against Japanese Aggression broke out, he led the troops to win more with less, and repeatedly made outstanding achievements. However, he changed his tactics without authorization and disobeyed the orders of his superiors, which led to his demotion and dismissal several times. 17 years later, Chen Sanchuan, the son he had never met before, became a brave soldier in his team and refused to recognize him because he hated his father's rudeness to his mother. Full of guilt, Chen Qiushi raised and trained his son silently and carefully. Chen Sanchuan's attitude towards his father gradually changed. When the War of Liberation broke out, Chen Qiushi was hit by shells for protecting soldiers. Before bed, father and son finally recognized each other. Later, the two men joined hands to write a touching battlefield legend on the battlefield.