Watch ‘Supernatural’ Season 9 Episode 4 Tonight: The Carver Edlund Books Return In ‘Slumber Party’ [VIDEO]

Sam and Charlie in the Men of Letters bunker, before they can work on the newly discovered computer, the Winchester boys must handle a seriously powerful hexbag! CW

“Supernatural” is about to reach a whole new level of weird tonight on the CW. The seemingly spooky Halloween episode gets a serious plot twist, when the Winchester boys get a surprise visit from Charlie Bradbury. But this certainly isn’t the only surprise in store for the Winchesters boys, in the beginning of episode 4 “Slumber Party,” they discover a new feature in the Men of Letters bunker.

Remember that table in the bunker that light up “like a Christmas” tree when the angels fell? Well Sam and Dean discover tonight that its more than just an ordinary table, it has an “ancient” computer attached to it. Who knew such computers existed? Well as you know, Dean is very anti computers and Sam can’t seem to crack its supernatural code. So the boys call the only IT pro they know-Charlie. If Charlie can get on to the computer, then the boys can track the angels using its data and information.
But there good-intentioned computer try goes awry when they dislodge a hidden hexbag. The hexbag is powerful and it unleashes a magical green web, obviously the Winchesters are stunned. Knowing they can’t just leave the giant spider web in the middle of the bunker, Sam and Dean decide to break through the web. Once through its magic, they discover “The one and only Dorothy.”

Yup, that’s right “The Wizard of Oz” is coming to “Supernatural.” But Dorothy isn’t the only storybook character caught in the web, the wicked witch is there too! So how exactly did Dorothy find herself caught in the Men of Letters bunker in a green spider web? Well, there’s a “Supernatural” explanation for that too! According to the official CW synopsis, “she had trapped herself and the wicked witch in the web years ago to stop the witch from finding the key that would open the gate that connected their world with Oz.”

“Supernatural” episode 4 “Slumber Party” airs tonight on the CW at 9 pm, if you miss it tonight be sure to check it out online available the next day at cwtv.com via live stream.