It's a heroic tale of three blood brothers and their struggle in the midst of war and political upheaval...

Three cops team up to bring down a criminal gang of seven, who have their own hidden agenda.

"Unspeakable secrets are hidden within the Forbidden City." During China's Tang dynasty the emperor has taken the princess of a neighboring province as wife. She has borne him two sons and raised his eldest. Now his control over his dominion is complete, including the royal family itself.

Story centers on a battle during China's Warring States period, a series of civil wars, which spanned from the 5th to the 3th centuries B.C. Based on a popular Japanese manga, which was in turn based a Japanese novel inspired by Warring States history in China.