Dragon Ball Z Kai (2009)
S01E02 The Enemy Is Goku's Brother?! The Secret of the Mighty Saiyan Warriors!
Episode Overview
After Raditz captures Gohan and reveals his intentions to take over Earth, Goku and Piccolo find themselves reluctantly teaming up. Despite their deep-seated mistrust of one another, they realize that neither can hope to take down the Saiyan alone!