From the award-winning creative team behind last year's Event Leviathan comes the next surprising chapter in DC Comics' deadliest saga. Leviathan has agents and acolytes all over the world-but what is the secret behind its power? The planet's last, best hope to infiltrate Leviathan may be this motley collection of spymasters, now teamed up to try to take back the world that was stolen from under us all! Green Arrow, the Question, Talia al Ghul and other unlikely allies converge to tackle Leviathan as members of the new Checkmate-but who is the surprise hero behind this team? Big clues to the future of the DC Universe start here!