My Grandpa, a Party Member

Lu Guoqing, who lost his father when he was young, was most afraid of hearing his grandfather Lu Yiming's name. During the Anti-Japanese War, Lu Yiming served as the director of the Tangqiao Coal Mine Hospital occupied by the Japanese invaders and was deemed a traitor; Lu Guoqing's father, Lu Guoqing, devoted himself to the self-defense counterattack against Vietnam and died heroically in order to wash away his shame. Just when Lu Guoqing thought that he was gradually getting rid of his grandfather's shadow, one day, Lu Guoqing received a call from Southeast Asia: an old man named Fang Dan wanted Lu Guoqing to help find information on how he and Lu Yiming joined the Communist Party of China more than 70 years ago...