Issue: #32
After breaking out of jail using a special laughing gas, the Joker and Catwoman plan their next dastardly crime. They are now going to utilize the gas to throw Gotham City into chaos! Guest starring Batgirl.
First appearances: Mayor Linseed
Creators: Jonathan Case, Wes Abbott, Aniz Ansari, Jeff Parker, Jim Chadwick
Characters: Batman, Dick Grayson, Joker, Catwoman, Harley Quinn, Barbara Gordon, James Gordon, Mayor Linseed, Professor Overbeck, Chief O'Hara