When a rival state sends troops to invade the Song Dynasty, the emperor sends overall Yang Ye (Adam Cheng) to shield the state. But, the place at the court of Yang would be shaky due to a feud with Pan Renmei caused by the accidental death of his son at the hands of one of the firearms of Yang. At the struggle, Yang is left handed by Pan's troops, leaving him trapped at the face of an attack by Yeli Yuan (Shao Bing)an enemy overall that wants to kill Yang to avenge his father. After learning in the situation of their father, the seven sons of Yang Ye set out to rescue their father at any cost.