While Batman prepares to become an official GCPD consultant, Catwoman relieves sword-crazy crime lord King Scimitar of his cash. The dynamic duo confronts a mentally deteriorating Two-Face, and the Joker meets a new recruit.

Robin wonders if his partner is too close to the Two-Face situation. While at the new Bat-Signal’s unveiling, the Joker sends a message. Later, a Senator prepares to testify against the Penguin -- unless the Penguin can get to him first.

Mayor Hill needs Batman’s help handling the fallout from Catwoman’s theft. The Riddler escapes from Arkham.

When Penguin lures Two-Face to Scarecrow’s fear gas plant, everything goes to hell. Robin infiltrates Two-Face’s inner circle and replaces his lucky coin. Vicki Vale and Catwoman team up to take down the Mayor together. And the Joker breaks his silence.

As Gotham braces for the upcoming Valentine’s Day attack, a drugged-up flash mob channels Joker-mania. Meanwhile, Riddler has writer’s block. Penguin pushes Two-Face too far. And Batman confronts Catwoman about her plans for Mayor Hill.

The Riddler gets his groove back, and Joker interrupts Bruce’s night at the opera. Bruce and Dick go to the Museum’s big unveiling, where the Penguin intends to settle an old grudge. At the harbor, Batman must choose between Gotham and Harvey Dent.