Justice League Vol. 5: Forever Heroes (The New 52)

As the Crime Syndicate hunts down the few heroes left foolish enough to challenge them - including Batman's protege, Dick Grayson - Owlman has other plans for Nightwing, and Owlman's teammate: the most deadly being on the planet: Ultraman! How can he possibly find a way to defeat them? Who can he turn to? Two words: Metal Men.