There was a movie of episode of Teen Titans where they were all grown up except for Robin. The tower was destroyed, and it's been bothering me for days. Does anyone know what it was called of have any other info?

All I know about it is that Robin is still young and he's looking for the other Titans and finds them all adults. BB works for the circus, Cyborg is holed up in the destroyed tower...and that's about all I know, other than Robin sees himself grown as some other kind of hero/villain. If u know the titel of the episode of movie that it is, please inform me. This has been eating at me for days!