DBZ Episode 121
From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Welcome Back Goku is the fourth episode of the Trunks Saga and the one hundred twenty-first overall episode in the uncut version Dragon Ball Z series. The original Japanese title is "Ossu!! Hisashiburi... Kaettekita Son Goku" (オッス!! ひさしぶり... 帰って来た孫悟空). The episode first aired on December 18, 1991. It's original American air date was September 7, 2000.
This episode begins with Future Trunks Brief slicing the already chopped in half Mecha Freeza into many pieces and destroying them with an energy blast. Now there is no way to rebuild Freeza again. Cold then decides to challenge Future Trunks believing that Future Trunks is powerless to attack without his sword but makes a grave mistake. Future Trunks uses an energy blast to burn a hole through King Cold. King Cold pleas with Future Trunks not to destroy him but Trunks uses another energy blast to destroy King Cold.
Future Trunks then tells the others that Son Goku will be arriving in two hours. They decide to follow Future Trunks. Future Trunks offers them soda while they wait for Goku. They ask Future Trunks many questions. He can’t answer any of them in fear of himself not being born in the future. Goku finally lands in one of the Ginyu Force pods. He is shocked but glad to see everyone there including this guy he never saw before (Future Trunks). They are shocked that Future Trunks knew the exact time and place of his arrival!
- Mecha Frieza and King Cold are killed by Trunks.
- Goku returns to Earth.
Future Trunks (Super Saiyan) vs. King Cold
- King Cold begging for his life is filler. Additionally, his begging is different in the English and Japanese versions. In the English versions, he said Frieza was the truly evil one and he only wanted peace. In the Japanese version, he tries to bribe Trunks by offering him planets to rule.
- When Future Trunks slices Frieza in half, he appears to be hollow, however upon slicing him into several pieces Frieza appears to have flesh (even his mechanical body parts).