Episode Title:
The Bat in the Belfry.
Episode Description:
After stopping a heist by Rupert Thorne, Batman returns to the Batcave to learn that all criminals in Arkham Asylum have mysteriously been released. Batman finds out that a crazed clown calling himself Joker is behind the breakout, and he plans to make a blimp full of Joker venom to explode over Gotham City so that every citizen turns into a lunatic.
