Written by James Tynion IV. Art Guillem March. Cover by Yasmin Putri.
The greatest heist in history is underway in Gotham City, courtesy of the mysterious crimemaster known as the Designer! Batman knows what he needs to do, but in order to stop the plot, he must first escape the most ingenious death trap the Riddler has ever devised!
* 2nd full appearance of Punchline
* 1st cover appearance of Punchline
* 1st appearance of the Underbroker, the finance manager in the Designer's inner circle
* First meeting of Punchline and Harley Quinn