Board Thread:News and Announcements/@comment-9346948-20160203192559/@comment-7515480-20160203232741

It's just one filler episode, dude. It doesn't take away anything that goes on in the main arc. The same thing as the crossoviers with Flash and Arrow. Both shows' main arc takes a break for one episode, so we can see a bunch of superheroes deal with some crisis on screen together. That's what it is, nothing more.