Commissioner Barbara Gordon : [beginning the flashback] I thought talking about it would get easier over time, but some hurts never go away. Dick Grayson - Nightwing - had left to establish himself in another city. There were three of us then: Bruce, myself, and Robin... Tim Drake. [Robin is seen gliding over Gotham's rooftops] Robin was out alone that night when he came upon a woman in trouble. Woman : Help! Help! Somebody, please help! Robin : Hero time! [grapples down to the ground and knocks out two thugs] That evens things up a little. [The "woman in trouble" is soon revealed to be Harley Quinn...] Harley Quinn : Not really, bird-boy! [knocks Robin out with her mallet, as the Joker enters the scene] The Joker : [chuckles] A bird in the hand... Commissioner Barbara Gordon : [narrating, as Batman and Batgirl search for Robin] We soon realized Tim was missing. Night after night, we scoured the city, running down every lead, pressing every underworld connection... but no one had seen any sign of Robin. For three agonizing weeks, there was nothing. Then, one night, we were sent an invitation... [Batman and Batgirl arrive on a rooftop, seeing a jack-in-the-box. Batman opens it with a batarang, but the "jack" triggers a grenade, exploding the box. In the remains, Batman picks up a straitjacket, realizing where Robin is...] Batman : Arkham. Commissioner Barbara Gordon : [narrating] The asylum had been moved to a newer high-security building. The old building had been partially demolished, and hung open like a rotting wound.

http://www.moviequotedb.com/movies/batman-beyond-return-of-the-joker/quote_138796.html