The CW has released the official synopsis and 16 promotional stills from the seventh episode of Supernatural‘s eighth season, “A Little Slice of Kevin.” Spoilers ahead!

KSiteTV has the official synopsis, which marks both the return of Castiel from Purgatory and Kevin after his disappearance at the end of “What’s Up, Tiger Mommy?”:

CASTIEL ESCAPES PURGATORY — Sam (Jared Padalecki) and Dean (Jensen Ackles) are stunned when Castiel (Misha Collins) suddenly appears back on Earth with no memory of how he escaped from Purgatory. Meanwhile, Mrs. Tran (guest star Lauren Tom) enlists a witch (guest star Cyrina Fiallo) to concoct a demon bomb, but the witch double crosses Mrs. Tran and turns her and Kevin (guest star Osric Chau) over to Crowley (guest star Mark Sheppard). Charlie Carner directed the episode written by Eugenie Ross–Leming & Brad Buckner (#807).

This summary brings up a lot of questions that will undoubtedly take us through the season, like what happened to Castiel in Purgatory, how he escaped, and why he has no memory. We’re pretty excited to see Team Free Will reunited, though.

The Huffington Post has the promotional stills from the episode:

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In several of these shots, Castiel is looking the worse for wear. Perhaps his time in Purgatory is still affecting him? We also get our first glimpse at Amanda Tapping’s Supernatural role, as she interacts with Castiel in two of these images.

Looking for more ‘Supernatural’?

We have a preview and sneak peek clip from this week’s episode, “Blood Brother.”

Be sure to check out what Jared Padalecki, Misha Collins, and Jensen Ackles recently had to say about their characters in season 8.