Huangpu Military Academy Class 6 graduate and secret Communist Party member Jiang Bo is imprisoned, while his newlywed wife Kang Ying, who is pregnant, is pursued by the white bandits and falls into the river during her escape. Military academy instructor Zhao Yiqing, tasked by the Communist Special Department, partners with female party member Teng Yulian to rescue Jiang Bo. At this time, Nationalist General Xuan Ziqi returns to Guangzhou to recruit soldiers, and Teng Yulian, along with her father, a renowned medical professor Teng Qian who returned from studying abroad, visits old friend Xuan Ziqi, falsely claiming that Jiang Bo is her lover. Xuan Ziqi readily agrees to help bail him out. Kang Ying, after enduring numerous hardships, finds her way to the military academy, where she is severely ill, and is sent to the Bo'ai Hospital established by Teng Qian by Jiang Bo's close friend He Kun. He Kun, who has secretly loved Yulian, takes the opportunity to shower her with attention. Xuan Ziqi instructs the Political Training Section Chief Yu Weisan to use his connections with Hu Jinshan, the Director of the Political Training Office of the academy, to bail out Jiang Bo. Hu Jinshan examines Jiang Bo through a vicious means of punishment, but Jiang Bo, remembering Zhao Yiqing's instructions, does not reveal his identity at the last moment. Kang Ying visits the prison and warns Jiang Bo that he has been executed, causing her to faint from a premature birth.