Well, we knew they would get there eventually, right?

Sam (Jared Padalecki) and Dean (Jensen Ackles) make their way into a mental institution in Thursday's episode appropriately titled "Sam, Interrupted." There, they find a distress call from Martin Creaser, a former hunter played by Jon Gries who's a patient there.

Creaser thinks supernatural forces may be the real reason behind a large number of patient suicides and his afraid for his own life.

The experience, however, proves to be a dangerous one for the Winchester Brothers as well as they, well, go a little crazy.

Don't know what I mean, watch this clip of next week's episode below.

"Sam, Interrupted" is written by Andrew Dabb & Dan Loflin and directed by Jim Conway.

"Supernatural" airs Jan. 21 at 9 p.m. ET on The CW.