It's time for Supernatural's Groot and Rocket to meet a very troubled version of Charlie Bardbury.

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The normally ebullient Charlie (Felicia Day) will return from Oz with a hardened demeanor, a killer right hook, and her very own sword. Unfortunately for the Winchester's, their tech-savvy protégé will be using her newfound skills to fight more than demons - she will be busy taking hostages and throwing punches at her old pals.

"Charlie definitely comes back from Oz somewhat different - and that's an understatement. Things happened," executive producer Jeremy Carver teased, according to TV Line. "And typically, what happens in Oz, stays in Oz, but not this time. It's all coming back. Suffice to say, we're going to see a Charlie that has been substantially changed."

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Penned by Robbie Thompson, "There's No Place Like Home" will definitely have some exciting twists.

"I can only say that Robbie [Thompson] wrote it again and of course every time I turn the page in a Robbie Thompson script I know that I'm gonna have an amazing time on set and be challenged as an actor," Day told Screen Fad.

Scroll through the photos above to see what's in store for episode 11.

Find out more when Supernatural airs Tuesdays at 9 p.m. ET.