- Script
- Matthew Manning
- Pencils
- Jon Sommariva
- Inks
- Sean Parsons
- Colors
- Leonardo Ito
- Letters
- Shawn Lee
- Genre
- anthropomorphic-funny animals; superhero; adventure; martial arts
- Characters
- Batman [Bruce Wayne]; Teenage Mutant Ninja Turtles [Leonardo; Donatello; Raphael; Michelangelo]; Mad Hatter [Jervis Tetch]; Lewis (Arkham guard); Two-Face [Harvey Dent]; unnamed Arkham inmates; unnamed Arkham monitor guard; Batgirl [Barbara Gordon]; April O'Neil; The Joker; Harley Quinn [Harleen Quinzel]; Robin [Dick Grayson]; unnamed bank robbers; unnamed Gotham police officers; unnamed Gotham citizens (under Mad Hatter's control); unnamed New York City citizens (under Mad Hatter's control); The Shredder; Rocksteady; Bebop; Scarecrow [Jonathan Crane]
The heroes learn that the Mad Hatter was behind the Kraang portals that transported the Gotham villains to the Turtles' world, and the technology and the locations of the portals will give the Mad Hatter the ability to gain mental control over everyone in New York City on the Turtle's world. Michelangelo, dressed as Batman, accompanies Robin to Gotham City to stop the Mad Hatter.