Orphaned by war, Xin is sold as a slave to a small village, where he befriends Piao, another slave. Growing up, Xin and Piao train together, dreaming of escaping their low statuses and eventually becoming great generals. One day, Chang Wen Jun visits their village in search of soldiers to aid the king Ying Zheng, but he will only accept Piao. A few days later, a mortally wounded Piao appears at Xin's house, warning him that Ying Zheng's brother, Cheng Jiao, has started a power struggle and urging him to go to a meet-up point marked on a map he gives him. Xin is forced to flee as his village is set on fire and the villagers are murdered by Cheng Jiao's army.

At the meet-up point, Xin finds Ying Zheng, but they are ambushed by an assassin. Xin realizes that Piao was accepted into the army to serve as Ying Zheng's body double due bearing a resemblance to him. After the assassin is killed, the two escape through a mountain path with help from Heliao Diao, a Mountain Tribe child who had accompanied the bandits who had previously ambushed Xin. As the three reach the bamboo forest, they are attacked by another assassin. Despite blaming Ying Zheng for Piao's death, Xin defeats the assassin, but he is poisoned by one of his darts. The three take refuge at an ancient summer resort to help Xin recuperate, while Xin learns Piao had voluntarily sacrificed himself to serve Ying Zheng and about Ying Zheng's bitter rivalry with Cheng Jiao.

Ying Zheng's remaining army finally arrive at the summer resort, including Chang Wen Jun, who was previously assumed to have been killed by Wang Qi. The army is outnumbered by Cheng Jiao's army of 80,000 soldiers, while Ying Zheng admits that L

https://en.wikipedia.org/wiki/Kingdom_(film)
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