In 1948, Ren Shaobai, an underground party member lurking in the Ministry of National Defense, hid for many years due to the sacrifice of a single-line contact.When another underground party, Qiao Mingyu, was exposed, Ren Shaobai took the risk of using the Ministry of Defense radio station to save the entire intelligence network.Subsequently, Ren Shaobai and the newly launched Peng Yongcheng were re-activated by investigating a case of military pay corruption.After being "awakened", he began his ascension in the Ministry of Defense, becoming a trusted assistant to the director of the Intelligence Department.Qiao Mingyu's widow, Lan Youyin, is a mathematical genius. She has been secretly planning to assassinate the military commander, and her motive is unknown.

Ren Shaobai made many military achievements in the struggle and established a tacit understanding with Peng Yongcheng, but his beliefs changed under the influence of the risk of being exposed to his identity.Ren Shaobai continued to play a role in the hidden front and contribute to the revolutionary cause.The shadow follows.During this period, his relationship with Lan Youyin gradually changed from hostility to cooperation.In the end, in order to protect Ren Shaobai, Peng Yongcheng died, and Lan Youyin also changed his faith under the influence of Peng Yongcheng and Ren Shaobai.Ren Shaobai continued to play a role in the hidden front and contribute to the revolutionary cause.

Original work: Sang Zhizhi

Screenwriter: Xu Ruoxin Gong Qi

Director: Zhang Kaizhou

Producer: Hou Hongliang

Starring: Xiao Zhan

Produced by: Noon Sunshine Film, Youku

On May 8, the male lead Xiao Zhan was officially announced

Officially announced on May 25th: Zhou Yutong