Batman and the Turtles grapple with the laws of Krang’s combined universe, desperate to return their two worlds to their original states. But there are some who do not want things set right. In this reality, the Laughing Man runs the Smile Clan, the most dangerous criminal organization ever to strike New Gotham City—and that’s how he wants things to stay! He’ll kill anyone who gets in his way...even the Shredder!

The animated worlds of the current Teenage Mutant Ninja Turtles Nickelodeon cartoon and Batman: The Animated Series collide in this outstanding mini-series featuring fan-favorite characters from both universes! Villains start to mysteriously escape Arkham and Batman seeks to track them down, but he discovers that they have left Gotham completely... and gone to the New York City of the Teenage Mutant Ninja Turtles! Collects issues #1-6!

A Venom-charged Donnie wages a brutal, one-Turtle war on the Foot Clan. Batman has to stop him and remind him of who he really is; someone who uses smarts—not brawn—to take down the bad guys. Damian and Raphael pay a visit to the Lazarus Pit to try and help a wounded Splinter. Then Batman tries to turn a former foe into an ally as part of a desperate attempt to finally end the reign of Bane.

Does a Starro dream of an electric Justice League? Sensing the danger to come, Jarro fears for his newfound friends. He ponders each one and their potential fate to decide whether he should mentally block them from going forward into what could be certain destruction…the coming war with the Legion of Doom!

"Join the Bat and some teenage turtles as they try to save their cities from the baddest of the bad guys! New York City. The Teenage Mutant Ninja Turtles face the battle of a lifetime, fighting both the fearsome Foot Clan and their leader, the Shredder, and the alien forces of General Krang... which is exactly Krang's plan. Now a single dimensional warp can rid him of both of his greatest rivals at once. Gotham City. From the Penguin to Killer Croc to Ra's al Ghul and beyond, the caped crime-fighter called Batman already has his hands full protecting his city. Suddenly, a new enemy emerges-the Shredder and his ninja followers, transported to Gotham and unleashed upon an unsuspecting world. Now they're on the hunt for the technology that will help them return home...and conquer Gotham City in the process. But heroes come in all shapes, and the Dark Knight does not fight alone. As the Caped Crusader joins forces with Leonardo, Donatello, Michelangelo, Raphael and Master Splinter, can the Bat, the Rat and the Turtles take down the most vicious villains from two dimensions?"--

Our heroes have battled the Foot Clan in Gotham City and Bane in New York, but now Krang has gotten his hands on the most dangerous technologies in the DC Universe-and no universe is safe from his wrath! As Krang's true power is revealed, it's up to Batman and the Turtles to stop him, but their only hope lies with a strange, yet familiar, visitor from another world! Collects Batman/Teenage Mutant Ninja Turtles III #1-6. Co-published with IDW.