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.

The Saiyan named Turles has come to Earth in order to plant a tree that will both destroy the planet and give him infinite strength. Son Goku and the Z Warriors cannot let this happen and duke it out with the invaders for the sake of the planet.