'Orphan Black' Season 2 spoilers: Episodes 5-7 titles and descriptionsAdd to Favorites | Orphan Black
Episode 5: 'Ipsa Scientia Potestas Est'
May 17, 9 p.m. ET/PT
Rachel goes on the warpath, lashing out at Sarah's nearest and dearest. While she tries to keep her loved ones safe, an unexpected visitor threatens to derail Sarah's plans.
Episode 6: 'To Hound Nature in Her Wanderings'
May 24, 9 p.m. ET/PT
Sarah joins forces with an unlikely and untrustworthy ally, following a trail of clues that she hopes will lead her to the origins of the clone experiment. Cosima and Delphine make a discovery that could prove to be the key to treating her illness. Alison finds herself in unsavory company at rehab.
Episode 7: 'Knowledge of Causes and Secret Motion of Things'
May 31, 9 p.m. ET/PT
When a rehab confidante betrays Alison and threatens to expose the truth about Aynsley's death, she goes into free fall on the eve of Family Day. With Donnie and the kids set to visit, it's all clones on deck to contain the fallout.