Tatiana Maslany, <em>Orphan Black</em> Tatiana Maslany, Orphan Black

Sarah's coming back. So's Alison. So's Cosima. Helena, too.

On Monday, BBC America shared a new trailer for Season 4 of Orphan Black, which will premiere Thursday, April 14 at 10/9c.

In Season 4, Sarah Manning and her clone sisters (Tatiana Maslany) have finally settled into quieter lives after their victory last season, but a mysterious new acquaintance is leading Sarah back into dangerous territory that feels uncomfortably close to what happened to Beth Childs. There's a new clone in the mix as well.

Watch the trailer here.

Orphan Black returns Thursday, April 14 at 10/9c on BBC America.