DC's Legends of Tomorrow S04 E12 The Eggplant, the Witch & the Wardrobe

"A roaring rewind."

With darkness on the rise in 2019, the team realizes that a new host of problems have risen as they have been cleaning up history. Sara tries to save Ava from a fate worse than death while battling her own demons. Nora and Constantine work together to take down a powerful demon. Meanwhile, Zari gets unsolicited advice from Mona, Charlie and even Rory.