Shen Zhiwei, 32, is the youngest chief of thoracic surgery at her hospital, cool-headed to the point of seeming heartless. During a rescue at a high-rise fire, her judgment clashes fiercely with that of Lu Chen, 39, the fire brigade captain in charge at the scene. Only when they review the operation afterward do they realize that combining their plans would have been the best solution. From then on, the wheels of fate begin to turn. Forced to form an emergency rescue expert team, the two face one crisis after another, becoming the only people capable of keeping up with each other’s minds. He charges against the crowd toward the flames; she defies medical convention to devise a surgical plan. In their respective fields, each is the sharpest blade, yet when they draw close, they carefully sheath every edge.