During their journey, Tang Seng and his disciples passed by the Golden Light Temple. The precious Buddha's relics inside the temple vanished, enraging the king and wrongfully punishing the monks. Tang Monk, accompanied by Sun Wukong, personally swept the pagoda at night and discovered a monster. It turned out to be a powerful nine-headed bug that had used magic to seize the treasure. Wukong battled the monster and, with the help of Erlang Shen, retrieved the treasure, thus saving the monks from the unjust accusation.