The Beginning of the End (July 31, 2017)

Batman's partnerships came to a rather bitter end in his later career. After Dick Grayson left for Blüdhaven to fight crime on his own, things took a traumatic turn following Tim Drake's kidnapping by the Joker and Harley Quinn. Tracking them to the abandoned Arkham Asylum, the Joker revealed that, in an effort to create his own "son", he had tortured, brainwashed and altered Tim to resemble himself... and learned Batman's secret identity in the process. Vowing to break the Joker, the enraged Dark Knight had his final battle with the Clown Prince of Crime. In the end, however, it was Tim who took the Joker's life - unable to heed his "father's" command to shoot Batman, Tim turned the gun on the Joker instead. After Tim underwent extensive therapy with Doctor Leslie Thompkins, Batman forbade Tim from ever being Robin again, and later ended his partnership with Batgirl.