It’s the year 50 BC. The Empress of China has just been imprisoned following a coup d’état incited by Deng Tsin Qin, a traitorous prince.<br />　　Helped by Finalthesis, the Phoenician merchant, and her faithful bodyguard Mai Wei, the Empress’ only daughter Princess Sass-Yi flees to Gaul to ask for help from two valiant warriors Asterix and Obelix, who are endowed with superhuman strength thanks to their magic potion.<br />　　Our two inseparable heroes gladly accept to help the Princess save her mother and free her country. And thus begins a great voyage and adventure on the road to China.<br />　　But Caesar and his powerful army, thirsty for a new conquest, are also heading toward the Middle Kingdom.