Goku and Vegeta’s fight with Beerus and Whis is cut short by Mai, who arrived from another timeline, informing them how Mirai no Trunks has been wen missing. A mysterious Person emerges who presents himself by the name of Fu and tells Goku, Vegeta and Mai that Murai no Trunks is captured on a place called the “Prison Planet”, a world that fighters from different timelines and existances fight as part of a test constructed by Fu.they arrive on the world where they find an a second Goku...