The Old Kai's Weapon

Gohan continues his struggling battle against Buu, but after Buu unleashes his stolen new techniques against the powered up Saiyan, it seems that Gohan may not come through for Earth after all. Meanwhile on the Supreme Kai's planet, the elder kai reveals a plan to help Gohan defeat the universal giant of evil. He gives up his life so that Goku can return to the physical plain and fight, but even that may not be enough, the second fase of the old man's plan, Potara earrings, these enable fusion to take place, when one earring is placed upon someones left ear, and the other placed upon another's right, their bodies merge together to create an even more powerful force.