Young Justice Season 2 Episode 20 Endgame Episode Title:Endgame.Episode Description:The council of Rimbor judges the Justice League to be guilty but Superboy and Miss Martian provide new evidence which sways their decision. Meanwhile, around the Earth, twenty Reach devices begin to damage the Earth's magnetic field, causing various types of natural disasters. With the help of Luthor, the superheroes succeed in destroying them, but the surprise of a twenty-first machine in the Arctic, leads to the sacrifice of Kid Flash. Bart Allen/Impulse takes on Wally's role as Kid Flash and Artemis becomes Tigress full time. Meanwhile, Vandal Savage takes the War World to Apokolips where he meets Darkseid.