Dragon Ball Z Episode 121: Welcome Back Goku
Episode 121 of 291 of Dragon Ball Z, aired December 18, 1991, 25 minutes. Available with English subtitles and dub where released.
Episode summary
By becoming a Super Saiyan, this young warrior defeats Frieza and King Cold with ease. With the threat over, he tells the others Goku will be coming soon, but can he be trusted?