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.
Wang Yangming switches from research to clinical practice, joining the emergency department at Ruiren Hospital. Alongside three fellow doctors, he hones his skills, builds lasting friendships, and navigates the challenges of love, growth, and separation in the fast-paced world of emergency medicine.
An Ni, a prosecutor of the Jiangcheng Procuratorate, was assigned by Chief Prosecutor Xu Ailin to handle the case investigating a missing college student who jumped off into a lake. She started with Zhao Jikai, the General Manager of Huiquan Games, and found connection between him and overseas organizations that promote bullying, leading to the arrest of the crime perpetrators. While Huiquan Games’ stocks price plummeted, Yin Huiquan donates to Jiangxiao Academy which would in turn corrupt minors in the guise of charity. The student Li Xiaowen and other victims come forward, publicly denouncing the unorthodox means of Jiangxiao Academy to control youngsters. An Ni presents solid evidences in the court, leading to the academy’s shut down and punishment of those who were involved. Yan Qin, who took over the Huiquan Games, misappropriated the funds to invest in the development of a copper mine. However, this investment venture was a Ponzi scheme by an online financial fraud gang.
Elite lawyer Qin Shi and resident homebody Yang Hua who got "married" for their own purposes unexpectedly find true love in each other. Together, they walk hand in hand towards a happy and fruitful life.
A single mother believes that she can give her son a happy life just on her own. However, at the critical juncture of getting her son into a primary school, she realises that all the mums in the kindergarten have their own troubles.
Xu Jie was recruited to Mingtang Law Firm to take on the bribery case involving Chen Wen Guang. Chen's daughter Chen Ran has also been secretly investigating the case. The two female lawyers with clashing views eventually come to a mutual understanding as they work together to reveal the truth.