On this Saturday’s sure-to-be-intense season finale of Orphan Black (BBC America, 9/8c), Mrs. S’ home is raided by the police, and that’s only one part of the problem.

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Making matters even worse (as you’ll see in the following exclusive video): Sarah winds up in handcuffs, and little Kira is there to witness mommy’s low point.

Meanwhile, what’s that rattling noise from down in the basement? If we were Art and his cop colleagues, we’d be looking over our shoulders for, well, you’ll see once you press play.

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If you have yet to jump aboard the crazy thrill ride that is Orphan Black, a marathon of Season 1 airs this Saturday, starting at noon, leading into the finale.

Press PLAY to watch the sneak peek and then hit the comments with your thoughts.