When the Joker kills Jason, Dick returns to Gotham to see how Bruce is handling it.

Red Hood, emerges as a new crime lord and creates terrorist attacks in Gotham. Dick calls in the rest of the Titans for help. A showdown between Red Hood and the Titans leads to a shocking revelation.

Jason attaches a bomb to Hank's heart. The Titans have less than four hours to find the detonator.

Dick breaks Jonathan Crane out of prison. Koriand'r and Gar try to find the source behind Kory's visions.

In flashback, we learn the story of how Jason became estranged from Batman, found his way to Dr. Crane, and the tragic turn of events that transformed him into Red Hood.

Crane enlists the help of lethal assassin Lady Vic, who has a troubled history with Dick and Barbara. Meanwhile, Kory and Gar bring Blackfire back to Wayne Manor.

Crane betrays Jason, and the Titans track Crane down.

As an emboldened Crane looks to filter his poison through Gotham's water system, Starfire, still plagued by visions, enlists Blackfire and Superboy's help, and Gar finally tracks down Jason.

While Rachel struggles for a chance to use her magic to resurrect Donna on Paradise Island, Tim Drake encounters Donna in the Underworld, and searches for a way back.

Crane turns Gotham against the Titans. Barbara takes a bold step and Rachel and Donna return as Gotham engulfs in chaos.

While Crane sets his ultimate sights on Nightwing, Gar and Rachel investigate Red Hood's place of rebirth, Donna and Tim reconnect in the real world, and Kory learns the truth about her past.

After Nightwing and Red Hood's battle, Rachel and Gar try to save their friend. Meanwhile, Jason questions his allegiance. With Barbara behind bars, Donna leads her own resistance operation, and Conner helps Blackfire recover her ship.

With Gotham once again at the mercy of Crane's terror, it's all hands on deck for the Titans as they infiltrate Wayne Manor and harness an ancient power that transcends life and death.