The Angel of Death comes to Briarcliff in the form of Frances Conroy.
Castiel decides he wants to be a hunter and helps the boys with a case that sends them into a world where the rules of physics don't apply - the world of cartoon physics apply.
Rick's camp takes in Michonne while Merle and the Governor interrogate Glenn and Maggie.
Isaak takes Hannah hostage to force Dexter to help him.
Thredson reveals the childhood trauma that turned him into a psychopath, and Arden is a confirmed Nazi.
Let’s start in the prison. Rick is on the phone, talking to a young woman who claims that she and her group are someplace safe.
Dexter has his hands full tonight: all three of his kids come back to Miami; he falls more in love with Hannah; and he finds Isaak's human side. And Deb... well, Deb is just fucked up.
Adalind is back, Hank is beaten up, and Nick's world is starting to unravel.
Olivia is worried about Peter - rightfully so - when he starts sliding further and further down the Observer hole.
Elena descends into madness after killing a human.