封建王朝消亡，长达半个世纪的战火动乱过后，古老的中华大地总算迎来了久违的和平。新中国建立，让皇城根下最普通的一群人命运发生极大的改变。为人耿直忠厚的王满堂是在旧社会成长起来的手工艺人，凭借一手古建筑修复的绝活，他带领伙伴肩负起为新社会修复古建的革命重任。在小小四合院内，还住着性格泼辣的寡妇刘翠兰以及有着婉转曲折恋爱故事的周大夫。远亲近邻，低头不见抬头见，孩子们一天天长大，生人熟客你来我往，点缀着四合院的春夏秋冬。在随后的反右倾、文化大革命等运动中，小小四合院又如同惊涛骇浪末端的一叶扁舟。最平凡的一群人，他们见证着祖国的天翻地覆的变化，和转瞬刹那的沧海桑田，用双手书写各自不平凡的人生……

After the demise of the feudal dynasty and half a century of war and turmoil, the ancient land of China finally ushered in a long-lost peace. The founding of New China has greatly changed the fate of the most ordinary people in the imperial city. The upright and honest Wang Mantang is a craftsman who grew up in the old society. With his unique skills in restoring ancient buildings, he leads his partners to shoulder the revolutionary task of restoring ancient buildings for the new society.