Spanning the multiverse are many versions of Earth and its faithful guardians: The Justice League.

Spanning the multiverse are many versions of Earth and its faithful guardians: The Justice League.

Yet while many versions of heroes such as Wonder Woman and Cyborg exist, there are many horrors as well. Now with the dimensions opening, our own League must take on The Merciless and The Murder Machine, horrors from beyond the dimensions intent on destroying Earth as we know it!