Li Laifu travels through time and is reborn into the 1960s, possessing a boy of the same name in Nanluoguxiang, Beijing, and awakening a portable spatial dimension. With abundant supplies, in an era of food and clothing shortages, he improves his family's life and relieves his grandparents in the countryside. He hunts, fishes, trades mountain goods for ration tickets and supplies, resolves neighborly disputes, helps his relatives around him, and uses his spatial dimension and the opportunities of the times to strive to protect his family and live a different life in the difficult 1960s.