Batman: The Animated Series Season 2 Episode 17 Lock-Up Episode Title:Lock-Up.Episode Description:Lyle Bolton, the new head of security at Arkham, is fired for his atrocious mistreatment of the inmates. Six months later, Bolton becomes the vigilante Lock-Up, and decides to put who he feels responsible for the ruin of the city behind bars. It's up to Batman and Robin to save his victims.