While Shredder enters an uneasy alliance with a deadly new partner, Casey Jones is arrested by the GCPD. At the same time, a crisis breaks out at Arkham Asylum, which is bound to keep both Batman and the Turtles busy. Meanwhile, a certain young resident of Wayne Manor returns home to find a new, green occupant in his room. Co-published with IDW. BATMAN and all related characters and elements are ™ and © DC Comics. © 2015 Viacom International Inc. All Rights Reserved. TEENAGE MUTANT NINJA TURTLES, and all related titles, logos and characters are trademarks of Viacom International Inc. Based on characters created by Peter Laird and Kevin Eastman.