In the late Qing Dynasty, the covetous foreign powers continued to invade, and the Qing government, which had been closed to the outside world for many years, became increasingly powerless to resist. The British and Japanese invaders frequently assassinated and kidnapped senior officials in an attempt to occupy Guangzhou City. The key to finding the secret weapon for Guangzhou City's defense is the Kowloon Key. Several warriors gathered together because of the clues to the Kowloon Key, and started a thrilling battle to defend Guangzhou City.