The preview for Season 2, Episode 8: "Into the Deep" (airing November 25) is about ten different levels of intense. Henry (Jared Gilmore) wants to be a hero and help get his family home by using the flame-filled dreams he shares with Sleeping Beauty (Sarah Bolger). But the happy reunion has a major obstacle: Cora (Barbara Hershey), and the army of the undead she raises. That's right: It's zombie time on Once Upon a Time. Check out the promo below!