The sisters are back in Season Three trailer for Orphan Black

BBC America’s Orphan Black continues to be be one of television’s most under-the-radar gems with its fascinating, sci-fi premise and a leading lady who should’ve been in the Primetime Emmy Award conversation since the show’s very first season. The series was renewed for a third season last year, and the first trailer for the new season — which kicks off April 18 — has now found its way online.

The next arc (spoiler alert) sees the return of the female clones played by Tatiana Maslany as they continue to search for the truth about their origins and the shadowy organization that’s been monitoring them, as well as dealing with the discovery that they’re not the only clones out there.

The series and its star, which have shared a long list of awards and nominations over the course of two critically acclaimed seasons, also welcome some new supporting cast members for the third season. Among the newcomers are Justin Chatwin (Shameless), James Frain (True Blood), and Ksenia Solo (Black Swan).

Orphan Black co-creators Graeme Manson and John Fawcett will also return this season in their roles as series writer and director, respectively.