During an emergency rescue drill organized by the hospital and the police academy, special police elite Xing Kelei (played by Bai Jingting) meets resident doctor Mi Ka (played by Ma Sichun).As the contact increased, the relationship between the two went from being incompatible at the beginning to understanding each other, and Xing Kelei was deeply moved by Mi Ka.The sudden earthquake broke the peace of life.Mi Ka and Xing Kelei were ordered to go to the disaster area in the face of danger. They were loyal to their duties in the rescue work, which perfectly interpreted the spirit and will of the public security special police and people's doctors to regard death as home in the face of national crisis.As the disaster relief work continued to advance, Mi Ka saw the righteousness of the public security police from Xing Kelei, and Xing Kelei also saw the benevolence and benevolence of the people's doctors from Mi Ka, and thus he understood the responsibilities and missions of the other party more and more.As a police officer and a doctor, the two are once again in the same boat, willing to build a city for each other, remain loyal, and protect each other and the millions of people behind them.

Xing Kelei and Mi Ka finally came together after experiencing a series of challenges.Mi Ka was recognized by Xing Kelei's father, and the two got married and had a daughter.Xing Kelei proposed to Mi Ka after she became pregnant. After the marriage, the two lived happily, and Mi Ka finally returned to work and achieved success.The pair Shu Wenbo and Ruan Qingxia experienced the pattern of women chasing men. In the end, Shu Wenbo accepted Ruan Qingxia and the two came together.Although Xu Yanshan was expelled, she changed her ways and started her life again.Other characters such as Xing Qiao, Shao Yuhan, etc. also have their own endings, showing their growth and happiness.

On January 22, 2020, the play officially announced the starring lineup and released a set of single posters and character stills; on October 27, the play announced a double poster and released a set of stills.On March 4, 2021, the show released its first trailer, announcing that it will be broadcast on Tencent Video; on March 8, the show's theme song - Because of You - was officially launched, composed by The LifeJourney) romantic singing; on March 10, the drama released the ending song 《Unexpected》; on March 15, the drama released the episode song《Falling in Love》 sung by singer Hu Xia; on March 19, the dramaDrama Release - You Are My City Fortress - the entire album was officially launched; on May 20, the drama released a poster and announced that it would be broadcast at the CCTV-8 Evening Classic Theater.On April 29, 2022, the drama was scheduled to be broadcast on the Korean video platform on April 29, 2022.