Cover A Regular Jon Sommariva Cover
 
Written by
Matthew K. Manning
Art by
Jon Sommariva
The Joker and Harley Quinn escape Arkham Asylum and make their way to the TMNT's NYC where they meet none other than the Shredder! Meanwhile, will Batman, Robin, and Batgirl be able to form a truce with the Turtles? The biggest all-ages crossover ever continues!