In order to save the people and fulfill his promise to villager Li Chengtian, Sun Wukong ventures into the underworld in search of Chengtian. Through many setbacks and hardships, a shocking conspiracy is uncovered and he finally defeats the demon and saves

A former assassin, Xiao Yu, is forced to accept a mission to recover three pieces of source code in order to save his family, but must go rogue to save the fate of mankind.