Castiel's new army is causing mayhem on Supernatural, and a few rouge angels are claiming their deadly actions are in support of their illustrious leader.

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Someone has incited a conspiracy within Cas' (Misha Collins) ranks during "Stairway to Heaven," and Team Free Will's rebel angel will have to call on his hunter buddies for help when his troops start killing themselves and taking down innocent civilians with them.

It looks like Tessa the Reaper (Lindsey McKeon) may be at the heart of the problem and Dean won't hesitate to slap a pair of supernatural resistant cuffs on Death's loyal employee (see photo below). However, it remains unknown how and why Tessa is involved in the recent violence.

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"I am going up to Canada to do more Supernatural next week. I am so excited," McKeon told the Examiner before filming started in April. "This is first of all one of my favorite characters to play. And I just read the script over the weekend and I'm even more excited now because it's a fun little juicy twist. I'm really happy about it!"

As Sam, Dean, and Cas work to answer these questions, director Guy Norman Bee promises that viewers will be treated to a bit of old school Supernatural.

"Just turned in my director's cut of #Supernatural #922," Bee tweeted. "It looks great & it's jam packed with all the elements of classic eps. of the past!"

Scroll through the photos above and click the video below to get a glimpse of what's in store for Team Free Will during "Stairway to Heaven."

Supernatural airs Tuesdays at 9 p.m. ET on The CW.

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Supernatural, The cw, Television