In Previous Episode
Mai is back to past and tells Goku and Vegeta that Zaiko and Taro, Two Defenders of Time kidnapped Trunks to his world and now Goku and Vegeta back to future but meanwhile Zaiko and Taro sends Zamasu who is miracling survive erasing Trunks timeline by Zeno and Zamasu is coming to Universe 11 but Zamasu will be completed his target? let's find out in Dragon Ball Super 2 Episode 18: Clash of Two Titans! Jiren vs Zamasu!
Future
Goku and Vegeta is looking everywhere and Vegeta says- looks like this guys is not attacking a city but only your house and Mai says- yeah and Goku asks-so maybe we will be calling to Zeno to take us to his world? and Vegeta asks- do you having a button? and Goku laughed- no i forget that i not have hahahaha! and Vegeta says angrily- so how you want call to him?!.
Universe 11
Jiren is medicating and then he hearing strange noise and stop medicating, Jiren looks and sees Zamasu and says- who the hell are you? and Zamasu says- calm Jiren im just wanna some sparring and Jiren says- i feel in you evil aura are you sure that you coming here for sparr- and then Zamasu attacks him and Jiren grabs his hand and Jiren says- asshole! and then fight is begins: Zamasu jumped up and Jiren punches him into stomach and sent him flying, Zamasu is teleporting and Jiren punched him into face and Zamasu is shooted to him with ki blasts and Jiren teleported and knocked him into land, Zamasu says- damn he is really tough and Jiren teleported and shooted him with ki blast and sent him flying and is exploded, Jiren says- hmph i don't know why are you fighting with me?! and then Zamasu is tried to stab him with his blade but Jiren is blocked and kicked him on rocks and then Zamasu is comes in air and shooting to him with ki blasts and yelled- DIE MORTAL!!! and is doesn't affect on him and Jiren says- i see you are imortal but i know how to defeat you and then Jiren is teleported behind him and knocked him on land and shoots to him with big wave and Zamasu screams- Nooooo! and everything is explodes, Jiren says- that not how imortality is looks for me and Jiren disappeared.
Goku and Vegeta is sitting in restaurant and Goku asks- hey where is Mai go? and Vegeta says- possibly for his equmpient and then big portal is opens and Goku and Vegeta says- this is it! and flyed to portal and portal is locked up.
Goku and Vegeta is finally go to Time World but what's will be happening in Past? we will be find out in Dragon Ball Super 2 Episode 19: Perfect Ultra Instinct's power! Hope is in us!