American Horror Story 2x13 Promo "Madness Ends" (HD) Season Finale

American Horror Story 2x13 "Madness Ends" (Season Finale) - Johnny sets out to complete his father's work. Lana leads the charge to finally shut down Briarcliff. Written by Tim Minear; directed by Alfonso Gomez-Rejon. Airs January 23, 10:00 pm e/p.