1x36 - Dragon Ball Z: Dragon Box

After a drawn-out, deadly struggle, Goku and the others finally drive off Vegeta. Wounded and fallen, they are rescued by Bulma and company. Because of Piccolo's death, Kami-sama and the Dragon Balls are also gone. The lives that were lost cannot be returned. Bulma and the others are in low spirits, but Kuririn has come up with one possibility. What about the Dragon Balls on Planet Namek, which Vegeta mentioned?