How could I leave the brothers alone!?! Also, Crowley! I love that actor. And I didn't want to miss out on Carry on my wayward soo-oon! There'll be peace when you are dooo-oone. Lay your weary head to ree-ee-eest! Don't you cry no more!

Can it be something classically monster-of-the-week related? Not the doom and gloom of the world ending, but just the brothers on the road, hunting things? OH! How about the one where Dean gets scared about everything? "Yellow fever"? Just a little bit of that?