Public support for Batman dwindles and Gotham City's 99 percent rally around ex-Joker Jack Napier's crusade to expose decades of corruption within the GCPD. A proposition inspires new revelations about Harley and The Joker's past; and as Jack transforms into a hero of the middle class and takes extreme measures to mobilize a revolutionary army of super-villains, Bruce struggles to stay focused on engineering a technological breakthrough to save Alfred.