When Harvey Dent is poisoned with derivative from an extinct flower, Batman must hunt down the assailant who has the antidote, the villainous plant fanatic Poison Ivy.
Batman and Robin battle the Clock King who has a prototype device that allows him to operate at an extremely accelerated time rate apart from the rest of his reality.
A district attorney who loathes Batman is forced to defend him in a twisted parody of a trial run by the inmates of Arkham Asylum who have seized control and taken them both prisoner.
A hyper-sophisticated robot steals computer technology from Wayne Enterprises, leading Batman to a sentient supercomputer, H.A.R.D.A.C., and its plan to replace humans with androids.
