Four generations of martial arts stars unite! Directed by Yuen Woo Ping, icons like Wu Jing, Nicholas Tse, and Jet Li come together for an epic martial arts event. In the desert, many groups—including escorts, the government, and merchants—are fighting for power. Dao Ma, a famous bounty hunter, takes a job to protect a Man on the long road to the city of Chang'an. However, he discovers the person he is protecting is the empire's most wanted man, Zhi Shi Lang. Now, every greedy faction is hunting them, and a deadly battle for the prize begins.