The heroes network — the secret technology that connects the Batcave, the Hall of Justice, and Superman's Fortress of Solitude – holds all the secrets of the DC Universe. The growing evil called Leviathan is trying to get it…and Checkmate are the only people standing in the way. All this and Leviathan versus Talia al Ghul in a fight to the finish, not to mention someone has kidnapped Lois Lane! And you never, ever, ever kidnap Lois Lane. Plus: Who is the Daemon Rose? This story ties directly into the events of Justice League!