In a fierce battle against the invading army of its neighboring country Liao, Song's main force, the famous Yang's Troop, suffers a complete defeat due to failure of prompt backup from its General in Chief Pong Loong, who is jealous of the Yangs of their military honors. Later, in the investigation ovr the defeat, the Justice Pao finds solid evidence against Loong of his fraternization with Liao, which leads to the execution of Loong, and thus arouses hatred between Yang's Family and Loong's father, the Grand Tutor Pong.Realizing his identity as a Yang's offspring after being out of contact with the Yangs for ages, Liao General Yollig Chung-Yuen returns to the land of Song for a reunion with his own birth parents. Seeing it a chance to maliciously revenge on the Yangs, Pong strives for the execution of Chung-Yuen. After his evil plan is destroyed by Justice Pao, Pong decides to vent his hatred on another Yang's member Chung-Po by framing him as a rebel, aiming to have the whole Yang's Family executed as traitors.
As the war between Song and Liao becomes more intense, the female warriors of Yang's put aside their personal hatred and set out for safeguard against the invaders. Unknowing that the Grand Tutor Pong has fraternized with Liao, the Yang's Army gets trapped and surrounded by the enemy and is facing a life-and-death situation....