Coinciding with the rising career and struggling life, Tian Beilei and Guo Yiming, a young couple working in Beijing, unexpectedly conceived a second child. Both parents came to Beijing, and the four elderly people abandoned their homes and careers and determined to be "Beijing Drifters" for their children and grandchildren. Under one roof, two places, three generations, and seven people staged a family emotional story with mixed joys and sorrows. The strong-willed Tian Beilei gambled everything for her future and lost her job, but she found a new way and found a bright future; the kind-hearted Guo Yiming was under pressure from both home and abroad and supported the pillars. The two reached the end of divorce and returned warmly. The four elderly people "fought" for love, returned to Beijing twice, and established themselves separately. A series of realistic problems such as the promotion of their children, the admission of their grandchildren to kindergarten, the choice of second children, the emotions of the elderly, etc., tested the protagonists in the play again and again. Through their respective persistence and understanding, struggle and compromise, separation and return, they moved each other and the whole play praised the unified values. Life finally made the young people realize that as long as family affection is together, as long as true love exists forever, as long as they are confident and optimistic, tomorrow will definitely be a beautiful day.