Egghead steals the Gotham City charter. He finds a loophole that could give him control of Gotham City if descendants of the original founding families (including Bruce Wayne) do not pay nine raccoon pelts to Chief Screaming Chicken on time. Not only is he interested in stopping the payment, but Egghead believes he also has a lead on Batman's true identity.

When the lease payment for Gotham City fails to be made on time, possession of the city falls into the hands of Egghead. Chaos ensues as the villain fires Commissioner Gordon and bans the Dynamic Duo from city limits. While the criminal underworld enjoys free reign, Batman and Robin search the city charter's fine print for a solution.