Chao is an old man racing against time to finish a statue of Gwan Gung (God of War) as he believes that when it is completed, a miracle will happen. Chao's son is a scientist and atheist, and therefore they never stop arguing. One day, to their astonishment, the aliens have invaded Hong Kong! While the scientists fail to defend the city, Chao's statue comes to life and slashes the aliens with his dragon blade!