This story begins with The Joker planning to copy of all Batman's equipment. He even sends out all mini Joker signals in case criminals need help with escapes, or so he can help them plan their next job. One customer asks for a good robbery, Joker gives him a jewelry store, where one of them gets shot. They use the Joker signal and Joker uses the Jokermobile a large vehicle with a dome on the back and front (there's a machine gun on the back) to pick them up. Joker even helps the wounded robber. He also gives them a new job.