The Z Warriors discover an unopenable music box and are told to open it with the Dragon Balls. The contents turn out to be a warrior named Tapion who had sealed himself inside along with a monster called Hildegarn. Goku must now perfect a new technique to defeat the evil monster.

A Super Namekian named Slug comes to invade Earth. But the Z Warriors do their best to stop Slug and his gang.

Bardock, Son Goku's father, is a low-ranking Saiyan soldier who was given the power to see into the future by the last remaining alien on a planet he just destroyed. He witnesses the destruction of his race and must now do his best to stop Frieza's impending massacre.