Seeking to prove once and for all that his is the superior mind, the Riddler lures Batman into a riddle-solving contest inside the virtual reality of a computer game in order to save Commissioner Gordon's life. In the course of solving the riddles and escaping the Riddler's traps, Batman learns that he is able to manipulate the virtual reality landscape much like the Riddler does.

When the Joker fires Harley, she tries going on a crime spree of her own, joining up with Poison Ivy, and the two become Gotham's Queens of Crime, much to the Joker's fury.