Gao Zhilei (Xu Zheng), who was once high-spirited, deviated from his original life trajectory in middle age under the pressure of life. His impulsive decision instantly turned him from the "little pride" of his family into the "scraps" of society. However, he never expected that this was only the starting point of his "retrograde life". The continuous changes came like a storm, forcing him to face himself again. When the burden of life really weighed on his shoulders, he chose to become a delivery man and started again from a new starting point. Gao Zhilei, who shuttled through the streets and alleys of the city, met a group of like-minded "knight" partners on the road. During the time they spent together, he deeply felt the warmth and warmth of the world, and gradually found the courage and faith he had lost in this "retrograde road" full of hardships, and redefine the new direction of life. This film is adapted from the original work "Retrograde Life" by Qingming.