Tatiana Maslany

Here's an early stocking stuffer for fans of Orphan Black: BBC America has released a short trailer for Season 2 of BBC America's sci-fi series.

The clip, which will officially premiere during the Doctor Who Christmas special on Dec. 25, shows star Tatiana Maslany morphing into four of the clones she plays on the show — Alison, Cosima, Rachel and Sarah — with all of their faces eventually merging to form a single strand of DNA.

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"I'm part of a sisterhood like no other, a piece of a puzzle I can barely comprehend," Maslany says in voice-over. "My life is someone else's experiment."

Check out the full trailer below:

Orphan Black kicks off Season 2 on Saturday, April 19 on BBC America.