The secret behind the Supergirl-Robin feud, revealed! On a day not too long ago, a meeting between the Boy Wonder and the Girl of Steel began sweetly, became awkward, and ended so catastrophically, horrifically, jaw-droppingly, car-crashingly disastrously that, among the Superman and Batman families, it is now enshrined as the world’s finest example of How Not to Team Up!

The Dark Knight. The Man of Steel. They are the two finest superheroes that the world has ever known...and they’re together again in an epic new series from the legendary talents of Mark Waid and Dan Mora! In the not-too-distant past, Superman’s powers are super-charged from a devastating chemical attack by the villain Metallo...and the only ally that the ultra-powerful Man of Tomorrow can turn to in this turbulent hour is Gotham’s own dark vengeance: the Batman. A nearly fatal burst of power drives Bruce Wayne to his own extreme measures to help his friend...enlisting none other than the Doom Patrol for aid. It’s the world’s greatest superheroes from the world’s greatest comic book talent in an epic comic book experience that kicks off the next big events in the DCU. Get ready, it’s time to soar.

It’s the landmark, oversize issue Detective Comics #1050, and some of the biggest names in comics are here to celebrate the Dark Knight! First up in “The Tower” part four, the villainous force keeping Arkham Tower’s patients sedated is at last revealed-and this villain’s return is guaranteed to catch you by surprise! It’s the dramatic conclusion to act one of Mariko Tamaki’s Arkham Tower epic, brought to life by the legendary Ivan Reis! Then, in “House of Gotham” part four, Matthew Rosenberg and Fernando Blanco take us into the seedy underbelly of Gotham’s criminal elite through the lens of the original Robin (Dick Grayson), and reveal what it takes for a young man to survive amongst the deadliest killers in the DCU. It’s a tour de force of Gotham’s vilest villains! Last but not least, making his grand return to the DCU, writer Mark Waid teams with Detective Comics uber-artist Dan Mora to bring you the start of a brand-new day for Batman…and Superman? It’s the world’s finest collaboration that you’ll need to read to believe!

Great Scott! It’s a twisted time-travel tale of titanic tenure! In an attempt to get to the bottom of the mystery of the “demon,” Robin the Boy Wonder and the Supergirl of Krypton venture back in time to China circa 1600 B.C.-running headfirst into the ancient superheroes known as the House of Ji! Meanwhile, Superman and Batman are losing a race against time to save their fellow superheroes from the schemes of a new villain…one simply known as the Devil Nezha.

Think you know how Superman and Batman met and became friends? Think again! Read the untold tale of how their worlds first collided-and the stunning, secret loss that nearly destroyed their partnership before it even began!

RECKLESS YOUTH continues as Superman and Batman struggle to mentor the new Boy Thunder! The Key has drawn the World's Finest team into an impossible dilemma unlike any they've ever faced when the entire city of Metropolis goes into a deadly lockdown!

DARKNESS FALLS! Eclipso, master of light and shadow, has risen to plague the World's Finest team of Superman and Batman! Powered like never before, Eclipso threatens to plunge the Earth into a state of eternal night--and eternal despair!