Monkey King battles the hero Ne Zha for a map that will lead to a weapon strong enough to defeat the Lady Bone Demon. With MK in peril, Monkey King uses the last of his strength to get back, but not before MK loses his powers. Now, MK, Monkey King, and the other heroes are on the run, pursued by the Macaque! Without his powers, MK must make a tough choice in order to defeat the villain!