Orphan Black: BBC Releases 'Cosima's Biology' Preview

via BBC America

In advance of Orphan Black, season four, BBC America has released a “Cosima’s Biology” preview. Watch it, below. Orphan Black stars Tatiana Maslany as multiple clones. The main cast also includes: Jordan Gavaris, Keven Hanchard, Maria Doyle Kennedy, Ari Millen, and Kristian Bruun.

BBC America says:

COSIMA NIEHAUS

C’osima Niehaus is the laid-back geeky stoner with west coast roots who is delightfully genuine. Once a PhD student in Experimental Evolutionary Developmental Biology, she dropped out to study the female clones’ biology. But the congenital respiratory illness that has killed other clones continues to threaten her life. Her former lover and lab partner, Delphine Cormier, sought to protect and help Cosima and her sisters, but her abrupt disappearance has Cosima in a constant state of anguish. With her health in decline, and her fear increasing, she becomes obsessively driven to discover a cure and save her sisters from what appears to be their collective fate.

Watch Maslany tease Cosima’s storyline.