The Batman - Series 1 - Bat in the Belfry

Children's animation. In Gotham, a metropolis where shadows run long and deep, lives The Batman. In his mid-twenties, he is just finding his way as protector, defender and Caped Crusader, while maintaining his public persona as billionaire bachelor Bruce Wayne. The Batman finds himself dealing with a new breed of criminal when Joker takes over Arkham Asylum, then plans to fly a hot air balloon filled with Joker Gas and release its contents all over Gotham.