100:00:02,252 --> 00:00:03,836NARRATOR:Previously on Supernatural:200:00:04,129 --> 00:00:05,462MARY:Sammy.300:00:05,797 --> 00:00:08,507Take your brother outsideas fast as you can. Go!400:00:11,928 --> 00:00:16,056Dad's on a hunting trip.And he hasn't been home in a few days.500:00:18,935 --> 00:00:20,269DEAN:This is Dad's book.