Goku and Vegeta's training with Whis and Beerus is interrupted by the arrival of Future Mai, who tells them that Future Trunks has been captured.
Goku! A Transcendent Battle Begins on the Prison Planet!' ( 悟 ご 空 くうvs 悟 ご 空 くう！ 監 かん 獄 ごく 惑 わく 星 せいで 超 ちょう 絶 ぜつバトル 開 かい 幕 まく！, Gokū vs Gokū! Kangoku Wakusei de Chōzetsu Batoru Kaimaku! ) Episode listing Universe Mission Prison Planet Saga
