From executive producer Bruce Timm and based on the acclaimed DC Comics graphic novel, Batman: The Killing Joke is a journey into the dark psycho of the Clown Prince of Crime. Follow his humble beginnings as a struggling comic to the fateful encounter with the Dark Knight that changed everything. Now escaped from Arkham Asylum, The Joker sets out to prove that one bad day can make anyone just as insane as he is. With The Joker's sights set on Commissioner Gordon, can Batman stop the demented plan in time? Featuring a gripping prologue spotlighting Barbara Gordon (Batgirl) and featuring the return of Kevin Conroy as Batman, Mark Hamill as The Joker and Tara Strong as Batgirl, witness the birth of a super villain, the fortitude of a hero and the punchline that will leave you speechless!