Dragon Ball Kai • S01E18 : The Spaceship that Sleeps in Yunzabit! Blast Off For Planet Namek
Goku, Krillin, and Gohan are in the hospital recovering from the battle with Vegeta. Their friends and family come visit. When the television is turned on, they see a report about Nappa's Space-Pod. Bulma, thinking she's pressed the button that will have it fly towards them, instead self-destructs the pod. Before everyone gives up hope, Mr. Popo arrives, and tells them that he knows of another spaceship. It's the Namekian ship that Kami used to come to earth when he was a boy. Bulma reluctantly agrees to inspect it up in Yunzabit Heights with him. They realize the craft is voice-activated in the native Namekian language. Bulma converts the language to english in a few weeks with Gohan and Krillin deciding to accompany her on her journey to planet Namek in search for the Dragon Balls.