Find the Nuisance, Babidi's Revenge Plan Begins!!

Plot:

Speaking to the people of Earth, Babidi threatens far-reaching destruction unless Piccolo, Goten, and Trunks reveal themselves. Despite this, Goku endeavours to teach Fusion to the boys. Meanwhile, Gohan is taken to the sacred domain of the Supreme Kais, and returned to fitness by Kibito, but can he draw the Z-Sword from its resting place?