DBZ Episode 21
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Dragon Ball Z Episodes
"Come Forth, Shen Long! The Saiyans Finally Arrive on Earth"
 SummaryGoku tests the power of the Spirit Bomb, the life-energy ball technique which he learned along with the "Kaio-ken" from King Kai himself. Unexpectedly, the Saiyans enter the solar system a full month earlier than anticipated, and will reach Earth the next day! Not a problem, they think — but King Kai had failed to include the time it would take Goku to return to the world below!
Goku contacts Master Roshi telepathically through King Kai, and tells him to summon Shenron with the Dragon Balls and bring him back to life immediately. Master Roshi, Bulma, Oolong and Puar release the dragon, and Oolong wonders out loud if they can't wish the Saiyans to defeat. Shenron answers that he would be unable to fulfill such a wish, since the Saiyan's power is greater than that of Kami, his creator. So instead, they wish Goku back to life.
Goku says his good-byes, and streaks back along Snake Way , which by King Kai's estimate will now take him just over a day to travel. The next day, at 11:43 a.m., the Saiyans' space pods make planetfall in the heart of the city of Metro East!
- The wish from Shenron later brought forth (or spawned) Rage Shenron.