this drama is adapted from douban reading serial novel "the six sisters", authored by yi bei.
on the eve of the liberation of new china, xu tian, a young policeman from baizhifang police station, accidentally participated in the cause of the peaceful liberation of peking by the communist party of china. faced with the turbulent situation, the three brothers jinhai, tielin and xu tian are in different positions, in family affection, love, national interests, and personal beliefs.