Teen Titans (TV Series) Episode: Divide and Conquer

The Teen Titans face Cinderblock, who attempts to break into the prison. Robin and Cyborg's team maneuver goes awry and the villain escapes. A fierce argument between Robin and Cyborg ensues, and Cyborg announces his decision to quit the team. Slade (Earth-Teen Titans) takes advantage of the split, sending the creature Plasmus (freed by Cinderblock) to eliminate the Titans.