District Attorney Harvey Dent hides a deep dark secret—he has a second personality, Big Bad Harv, a tough gangster.

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.

When Clayface's clay-like body begins to disintegrate, he is forced to steal to pay for the expensive ingredients of a possible remedy.

The Riddler appears to have gone straight when he develops a new and successful puzzle based toy.

The Clock King plots against Mayor Hill after he steals an invention that allows him to travel at super speed.

Batman tracks three wealthy playboys who commit crimes out of boredom.