When a rival nation sends troops to invade the Song Dynasty, the emperor sends general Yang Ye (Adam Cheng) to defend the nation. However, Yang’s place in the court is shaky due to a feud with Pan Renmei caused by the accidental death of his son at the hands of one of Yang’s sons. At the battle, Yang is abandoned by Pan’s troops, leaving him trapped in the face of an attack by Yeli Yuan (Shao Bing), an enemy general who wants to kill Yang to avenge his father. After learning about their father’s predicament, Yang Ye’s seven sons set out to rescue their father at any cost. In ancient China, the seven heirs of the Yang family face a horde of enemies to rescue their father. Northeast China, early Northern Song dynasty, AD 986. The Khitan army takes its revenge for a past massacre, abducting General Yang Ye (Adam Cheng) and leaving his wife and seven sons to rescue him – and fall into their deadly trap. Led by the first son (Ekin Cheng), the seven – two of whom have never seen combat – set out with a small band of fighters to face an army of thousands, brave the treacherous Wolf Mountain, face the nemesis of their shared history, and find the way back alive – all to bring their father home.