First, the synopsis:
SAM & DEAN LOCKED UP IN THE NUTHOUSE?! - Sam (Jared Padalecki) and Dean (Jensen Ackles) go undercover at a mental institution in response to a distress call from Martin Creaser, a former hunter (guest star Jon Gries) who's a patient there. Creaser thinks supernatural forces may be the real reason behind a large number of patient suicides and is afraid for his own life, but the experience proves to be a very dangerous one for the Winchester brothers as well. "Sam, Interrupted" was written by Andrew Dabb & Dan Loflin and directed by Jim Conway.
Clip 1 (from The CW)