Long ago, the peacock rulers of Gongmen City invented fireworks for peaceful purposes, but their son, Lord Shen, discovered that the black powder could also be weaponized. Troubled by Shen's obsession, his parents consulted a soothsayer, who foretold them that if he continued too far down this path, he would be stopped by "a warrior of black and white". Overhearing the prophecy, Shen deduced that the warrior would be a panda and led his wolf army to exterminate the pandas. Horrified by the genocide, Shen's parents banished him. In the present day, Shen and his wolf army raid villages for scrap metal, hoping to build cannons that Shen can use to conquer all of China.