Batman, Lieutenant Jim Gordon, and District Attorney Harvey Dent form an uneasy alliance to dismantle organised crime in Gotham City. Their progress is shattered when The Joker, a psychotic criminal mastermind, launches a campaign of chaos designed to prove that even the best people will abandon their principles under enough pressure. Heath Ledger’s Joker is a force of anarchy that pushes Batman to the very edge of his moral code, turning a superhero film into a gripping crime thriller about order, chaos, and the choices that define a hero.