Letters Column: Sort of - intro by the editor where letter column would be.
In return for the theft of a small, unspecified item, the Joker provides the Penguin with a new plan: rob the banks of Gotham, and then turn around and use the money to garner public acclaim by becoming a millionaire philanthropist. Penguin enjoys his new status, until Batman catches wise.
First issue. Issues 1 through 3 are loosely connected by the Joker plotline.