In the Ming Dynasty, there are four orphans, Ying (Donnie Yen), Yuanlong (Simon Yam), Sao (Wang Baoqiang) and Niehu. Raised in Taoyuan Village, the four are close as brothers. Their exceptional martial arts allow them to reach the highest rank among the imperial guards. They take the order to kill the Japanese troop leader, and return in triumph. The Emperor then orders Ying to escort the Golden Wheel of Time from India back to the capital, which is said to have the power of time travelling and foreseeing the future. On the way of escorting, Ying is set up by his brothers and he chooses to fight against them. The duel has shaken the earth, an avalanche strucks and buries the four. Travelling 400 years in time to modern Hong Kong, Ying meets wasted May (Eva Huang) who gives him shelter.
H/T to Lucia Hernandez for the song title.