After destroying Frieza on Namek, Goku returns to a peaceful life on Earth. When informed his brother has been killed by a Saiyan, Cooler is hell bent on killing Goku, and making him pay for his brother's disgrace. Goku has to find the power within him to defeat a warrior even more powerful than the horrible Frieza.
Dragon Ball Z: Cooler's Revenge
Frieza's older brother Cooler travels to Earth to take revenge against Goku for Frieza's defeat on planet Namek.