Without Batman Robin puts together a team of heroes & anti-heroes included Batgirl Harley Quinn Killer Croc Black Canary & Green Arrow through a maze of madness
A a more naïve, less powerful version of Superman joined with a less moralistic more sarcastic version of Batman is a winning formula.
Superman died defending Earth, but watching it was Superman from another timeline. This Superman / Clark Kent has married Lois Lane and a father to (Superboy)