The Egyptian God of Chaos inhabits a human, and tries to release pure evil into the world; the librarians must decipher clues in a science museum.

The Titans make their last stand against Trigon.

Newly released from prison, a brooding young woman named Bonnie sets out to avenge the death of her lover.

Flint and his crew wage war against the world; Eleanor is offered clemency; Vane takes issue with Rackham's methods; one of Nassau's most notorious individuals returns.

Barry is brought out of the Speed Force to help fight an armored villain, but he isn't the same person.