Batman investigates a series of baffling crimes and discovers that the crime czar is a wooden dummy, manipulated by a mild-mannered man called the Ventriloquist.

All of Batman's enemies team together to put Batman on trial and send him to Arkham Asylum.

Lyle Bolton Arkam's former chief of security becomes the vigilante Lock-up and kidnaps Commissioner Gordon and Mayor Hill seeing them as the cause of rampant crime in Gotham City.

Catwoman's attempt to go straight runs into problems when she is enticed into one last job by the Ventriloquist.