The Knights of Tomorrow!

Teaser: The Question, under Batman’s guidance, dodges Kalibak and the Parademons on Apokolips when gathering information on Darkseid’s plans to invade Earth.
Main Plot: In Batman’s future, Batman retires and marries Catwoman with whom he has a son named Damian Wayne while Dick Grayson has become the new Batman. When the Joker who claims to be the old Jokers son, a reluctant Damian will have to assume his deceased parents’ legacy by becoming the new Robin to stop them. It turns out that the events of the episode were part of a book that Alfred Pennyworth was writing.