Alright well if your in for the Death Metal set up come along for the ride if not....honestly I wouldn't begin to know why your here. I mean essentially this is prelude to Death Metal the comic starring Lex Luthor, that doesn't mean its bad or that it being a prelude to Death Metal is a bad thing, but its exactly what it is. It is the build up to whatever Batman who laughs is gonna do to cause the events of Death Metal to happen, and it talks about things like Crises and it has some big people from the multiverse show up and references events from Snyder's Justice League and I guess Year of the Villain. If you can get behind that idea or you want to follow from what has happened then you should pick this up, if not this book probably won't be for you.
With that in mind lets talk a little about what happens.
spoilers:end of spoilers
Basically after the preview ends Joker successfully rescues Lex from the Infected League or the Secret SixSixSix or whatever else you wanna call the reserves of the Justice League that Batman who laughs has infected. How did they escape? Well apparently Joker's been torturing the brotherhood evil and he had the villain Warp come get them....doesn't end well for poor Warp.
If you were expecting the issue to be a fight scene it's not, its actually more of a carry over from Justice League issue 13 where Joker berates Luthor for ever trusting the Batman who laughs, and it gets meta that Joker even says they weren't meant to go to the moon or be alien enhanced apex lex serving a celestial entity who turned the Legion of Doom into a chair. They should be who they are is what essentially Joker tells him. Luckily though Joker was more help then that because from reading his mind and looking at his version of the Joker toxin Luthor thinks he can beat Batman who laughs. How? By doing it his way and going in full Lex armor and bringing some of the villains he powered up in Year of the villain to help fight Batman who laughs and his army at the hall of justice.
The only thing of real note and confusion is that somehow Batman who laughs captured Nix Uotan the Monitor (from Multiversity) and has him locked up in the Hall of Justice... not sure what Batman who laughs plan is but so far he's got an infected Justice League, the Secret Six, and both the Phantom Stranger and Nix Uotan locked up.
Like I said its not bad, but you know its not the real end game to all this with Death Metal coming in May. But the art's not bad, its not poorly written, and with one more issue to go lets just see what happens on this crazy ride Snyder and Tynion have brought us to.