An actress stuck with her career, a lonely veteran in a Beijing alley. A naughty kid raised by his grandma and a failed middle-aged man. Because of a scam these four people are forced to form a temporary family.

The Blue Mountain Group plans to transform the peaceful and tranquil Xiangyang Street into a tourist resort, using the pretext of restoring the natural ecosystem to force residents to relocate. A biological disaster is triggered when research lab specimens escape. Amid the danger, the protagonist Han Jie fearlessly protects his two daughters and neighbors, subtly influencing and transforming everyone around him through his actions.

Three years ago, anti-drug police officer Daqi lost his comrade in an undercover operation. Filled with guilt, he lived in seclusion in a small southern town, secretly protecting his comrade's daughter, Xiaodie. Xiaodie was curious about this silent neighbor, but her life took a sudden turn when she was abducted. Daqi's dormant police spirit awakened, and he embarked on a life-and-death pursuit alone. Can he keep his promise to his comrade on this path of redemption?