The life story of Da Yu'er, an influential woman who oversaw three dynastic successions in the early Qing dynasty. As a child, Da Yu'er, the future widow of Empress Xiao Zhuang, was a free-spirited princess who roamed the Mongolian prairie and dreamed of marrying her love, Dorgon. But as fate would have it, she married her brother, Hong Taiji, in a political alliance. She fought between her heart's desire and her responsibility to her clan.