'Orphan Black' Goes Down the Rabbit Hole in Season 4 Teaser

The Clone Club recites a passage from Lewis Carroll's "Alice's Adventures in Wonderland" in the cryptic new teaser for the fourth season of "Orphan Black."

It's not the words that are so foreboding, but rather the imagery of a fire, which consumes even Kira's stuffed monkey. "The only way forward," the teaser concludes, "is to go back."

Starring Tatiana Maslany, the acclaimed sci-fi thriller returns in April on BBC America.

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