'Supernatural' "Slumber Party" Sneak Preview

This past week's more Castiel-centric 'Superantural' installment "I'm No Angel" dropped some heavy emotional moments between the characters, but next Tuesday's "Slumber Party" will feel much lighter, both literally and figuratively. Not only does Charlie (Felicia Day) return, but the boys discover the real-life Dorothy trapped in their wall, fresh from a visit to Oz!

Not only do the full set of photos reveal Charlie's return, along with a strange new take on the 'Wizard of Oz' as the brothers find Dorothy in their wall, but we also get our first look at the Men of Letters garage, something Dean will surely be happy to spend more time in. It's hard to know exactly what we're looking at, but clearly 'Supernatural''s Dorothy has a bit more fight in her than the classic Judy Garland version.

From The CW's official press description of 'Supernatural' season 9's "Slumber Party":

FELICIA DAY RETURNS AS CHARLIE/SAM, DEAN AND CHARLIE MEET DOROTHY FROM OZ
Sam (Jared Padalecki) and Dean (Jensen Ackles) discover that the table in the Men of Letters house (the one that lit up like a Christmas Tree when the angels fell), has an ancient computer attached to it. They figure if they can get the computer on, they can track the angels. Who better to call for help than the best IT girl there is, Charlie (guest star Felicia Day)?
While moving the massive computer, they dislodge a hidden hexbag that unleashes a magical green-webbed wall. Sam and Dean break through it and discover the one and only Dorothy (guest star Tiio Horn) from Oz. She had trapped herself and the wicked witch (guest star Maya Massar) in the web years ago to stop the witch from finding the key that would open the gate that connected their world with Oz. With the wall broken, a massive and magical fight ensues that threatens to destroy the Men of Letters house.

You can check out the full set of photos from "Slumber Party" below, and give us your predictions for 'Supernatural''s trip to Oz in the comments!

The CW