Beijing Ciwen Digital Oriental Film & TV Production Co.

In the middle of the 17th century, the Manchus conquered China and founded the Ching dynasty. Due to widespread uprisings against the new rulers, the study and practice of traditional martial arts is forbidden and punishable by death. The unscrupulous leader of a troop of mercenaries takes advantage of this situation to make a fortune with the bounty on his head.

Louis Koo plays 009, or translated literally from its aural pronunciation, double-O Dog. He's one of 12 special Royal Bodyguards of a simpleton Emperor (Liu Yiwei) who named these 12 guards after the Chinese Zodiac, hence 9 translated to Dog. Unlike his peers, Dog is a scientist, and relies pretty much on his brains and fantastical gadgets to protect his Majesty from evil ninja assassins.