With the help of Lieutenant Jim Gordon (Gary Oldman) and District Attorney Harvey Dent (Aaron Eckhart), Batman has been making headway against local crime...until a rising criminal mastermind known as The Joker (Heath Ledger) unleashes a fresh reign of chaos across Gotham City. To stop this devious new menace--Batman's most personal and vicious enemy yet--he will have to use every high-tech weapon in his arsenal and confront everything he believes.