The world is suffering from drought, and Huaguoshan is deeply harassed by the surrounding big demon because of its possession of water. Sun Wukong and his brothers, the red monkeys, are trying to find out the truth about the drought, and they are also seeking a weapon to fight against the big demon. The pickpocket weapon was involved in a conspiracy. In order to prevent the evil dragons from destroying the human world, Sun Wukong defeated the dragon with the help of the little dragon girl, and finally got the wishful golden hoop to solve the human crisis.