Synopsis: Fusion Zamasu explains his new powers; he possesses the immortality of Future Zamasu, as well as Goku Black's Saiyan ability to grow stronger from each fight. He shows off his power, devastating the Earth in the process. Meanwhile, Future Trunks decides to rejoin the fight, while Mai and Bulma are working on the time machine. Goku and Vegeta engage Fusion Zamasu in combat, but are easily defeated. Future Trunks joins the fight, but is also overpowered. Fusion Zamasu begins charging up an enormous ki blast, the Holy Wrath, to destroy the planet, but Future Trunks uses a last-ditch Gallick Gun attack to hold him off. Vegeta joins the clash with his own all-out Gallick Gun. Surprisingly, their combined attack overpowers Fusion Zamasu's attack, saving the Earth; however, Fusion Zamasu survives unscathed. Vegeta barely saves Future Trunks from a deadly attack by Fusion Zamasu, but is knocked out by the blast. Fusion Zamasu charges a second Holy Wrath attack, but Goku rejoins the fight and counters it with a massive Kamehameha.