The ultimate superhero crossover of the year!

The out-of-shape and out-of-practice Black Hammer heroes must contend with a suspicious Justice League as Colonel Weird and the Green Lanterns try to unravel the mystery at the heart of this dimensional switch—and the DC heroes marooned in Black Hammer Farm make a surprising discovery that may offer them answers.

''I didnt think something could be thrilling and sad at the same time but now there's Black Hammer proving me wrong. Amazing, just flat–out amazing.''–Patton Oswalt