The play revolves around firefighter Song Yan and emergency doctor Xu Qin. The two fell in love when they were young but were forced to break up due to the class prejudice of Xu Qin's adoptive mother. They reunited ten years later due to their professional nature. Song Yan led the members of the Shilitai Fire Station to stick to the front line of rescue and experienced extreme scenes such as fires, earthquakes, and typhoons; Xu Qin raced against death in the emergency room and gradually broke away from the constraints of his original family. The two unraveled their knots while guarding the city side by side, overcame family resistance, and finally held a simple wedding at the fire station and reunited.
