Nobita is watching Dragon Ball Z on TV, and as usual the episode ends with a cliffhanger. Nobita comments on how cool would it be to fight like Son Goku. Then Doraemon explains that even in the 22nd century Dragon Ball Z is still being rerun and still popular. From his magic pocket Doraemon brings out the "DB Candy Z". Special candy that as long as you have it in your mouth you turn into a DBZ character and become able to perform the character special techniques. Nobita tries some candy and becomes Son Goku, he can even perform the Kamehameha. To avoid making a mess of the house Doraemon also brings out a special diorama where they can play safely. They also decide to invite Shizuka, Suneo and Giant to play together....