Gotham's mayor is resolved to remove Poison Ivy from the park in the center of Gotham. If she will not surrender, he's ordered the police to spray the entire park with a military grade herbicide. This will certainly kill Ivy, but could also be fatal to the sixteen children living with her. Batman has until dawn to convince Ivy to surrender.
Bruce Wayne has his share of problems as well. The board of Wayne Enterprises has ordered that he accept the services of bodyguard Sasha Bordeaux, or they will resign en masse.
