Purple Rain

S3, E13: The Titans band together once more in the final battle for Gotham against the madness of Jonathan Crane. While Barbara finds an unexpected ally working within the GCPD, the Titans refuse to play the game by Crane's rules, handling things their own way. As Crane unleashes his lethal endgame poisoning the city, it's all hands on-deck for every member of the team - past, present and future - as they infiltrate Wayne Manor and set out to harness an ancient power that transcends life and death in the epic season finale of Titans.