The remnants of Frieza's army, led by an alien named List of Dragon Ball characters#Sorbet, head to Earth where they convince Pilaf (Dragon Ball), Mai, and Shu, who have collected the Dragon Balls, to summon the wish-granting dragon Shenlong (Dragon Ball). Sorbet makes a wish to revive Frieza, but Shenron can only bring him back to life in the form of the pieces that Trunks (Dragon Ball) cut up, which Sorbet's minions reassemble using their advanced technology over the following two months. Once restored, Frieza plans revenge against the Super Saiyans, but upon learning that Goku has gotten stronger to the point of defeating Majin Buu and fighting Beerus the God of Destruction to a stalemate (as Buu and Beerus were the only two beings in the universe Frieza was warned by his father never to cross), he postpones the invasion so he can train himself for the first time in his life.