Shadows of Espionage in Jiangcheng

Neon-lit Jiangcheng is the birthplace of "Deep Sea," a top-secret national project, and has become the target of the overseas spy organization Viper. Lu Zheng, head of the Ministry of State Security's Rock action team, infiltrates Jiangcheng posing as a journalist and teams up with intelligence officer Xia Wanxing, who is disguised as a director of international public relations. From mutual suspicion to a bond forged in life and death, they join forces to protect core researcher Shen Zhiyan.

Lu Zheng is shocked to discover that their enemy is Chen Mo, his former classmate at the police academy. Now Viper's Jiangcheng chief, Chen betrayed the system over a wrongful case involving his father and is obsessed with surpassing Lu. Xia Wanxing is also trapped in a bind: her close friend Su Man is actually a Viper informant, and her younger brother's illness has become a weapon the enemy uses to control her.

Decoding secret messages, rooting out moles, and foiling assassinations, the team advances at every step as if walking on thin ice. As the investigation deepens, the truth about Xia Wanxing's father, Xia Mingyuan, faking his death comes to light: he is actually "Old Gun," an agent who infiltrated Viper. Even more terrifying, Viper's senior figure "Ghost" has hidden ties to Gao Tianyang, the chairman of the Jiangcheng Chamber of Commerce, and Zhang Jingzhi, the late founder of the project.

Beneath the neon lights, gunfire goes unheard. Amid life and death, their faith remains unshaken. A final showdown over national secrets and personal destinies unfolds quietly in Jiangcheng.