Ten years ago, Zhao Haiyang’s mistake during a manhunt led to the death of his mentor, Xia Hui. Now, Zhao is the Deputy Director of Dongzhou’s Public Security Bureau, while Fang Cheng, a former colleague, returns to the city with innovative ideas for police reform. Tension arises as Zhao is skeptical of Fang’s methods, but the new techniques prove effective in combating a wave of modern crimes. Just as progress is being made, the killer from a fifteen-year-old case resurfaces, forcing Zhao and Fang to join forces to bring the criminal to justice while facing an unseen, powerful adversary.
Lu Fei, a young game designer, helps flight attendant Ran Jing after she gets drunk, and they begin to grow close. As their relationship develops, Ran Jing struggles with trust issues, while Lu Fei faces career setbacks and secretly works in funeral sales. A car accident tests their relationship as they navigate personal struggles, but their connection deepens, leading to a heartfelt turning point.
Wan Jiaming, a community police officer with a scholarly background from Jiangnan, and Qu Xiaohe, a retired athlete assigned to work in a grassroots community, navigate the challenges of their new roles as they help transform a children's clothing town from a chaotic industrial hub into a harmonious, modern city where people live in peace.
Nineteen years after being dismissed over a national security leak, former officer Wu Yu has lived on the fringes, relentlessly pursuing the truth behind the betrayal that ruined his life. As he uncovers hidden layers of deception, a new officer, Guo Weijie, inspired by Wu Yu’s determination, grows into a leader in national security. Together, they face mounting dangers to reveal the true traitor.
EMT's president tries to force his daughter, Ai Mi Er, to marry Long Ke Company's He Yi Kun, the eldest of the president's sons for a business alliance. Ai Mi Er runs away to receive help from her boyfriend, Peter, and coincidentally ends up as the housemaid for He Kai Xin, the younger brother of He Yi Kun
In the late 1920s, Cai Zekang, from a prominent Ningde family, moved to Shanghai to study at Tongji University while secretly seeking Communist Party connections. After confirming his membership, he adopted the alias Cai Wei and was tasked with establishing a radio station in the Eyuwan Soviet area. There, he set up communications for the Red Fourth Front Army and trained new operators, using his mathematical skills to provide vital intelligence that supported the Red Army's efforts during a critical period.
After the Mukden Incident, Shanghai medicinal material merchant Xiang Qingsong privately organized fundraising to support the Northeast Anti-Japanese Volunteer Army. His son Xiang Binli also secretly participated in anti-Japanese activities without telling his father.