Mark is taken down in a Prolethean shoot-out and Sarah must step in to help. But as Sarah gathers intel that puts her on the trail of the original Castor DNA, a familiar foe is not far behind. While Helena continues to toil in a faraway military compound, it is ultimately Sarah's fate that will hang in the balance as she tries to save her sister. Meanwhile, Gracie is cast out from the Prolethean fold, and Alison and Donnie come face-to-face with unhappy drug lord, Jason Kellerman.

Orphan Black Season 3 Episodes...

• s03e01 - The Weight of This Combination
• s03e02 - Transitory Sacrifices of Crisis
• s03e03 - Formalized, Complex, and Costly
• s03e04 - Newer Elements of Our Defense
• s03e05 - Scarred by Many Past Frustrations
• s03e06 - Certain Agony of the Battlefield
• s03e07 - Community of Dreadful Fear and Hate
• s03e08 - Ruthless in Purpose, and Insidious in Method
• s03e09 - Insolvent Phantom of Tomorrow
• s03e10 - History Yet to Be Written

Orphan Black Show Summary

After witnessing a woman's sleeping, street-wise chameleon Sarah assumes the stranger's identity, who happens to look just like her. Expecting to solve all her problems by cleaning out the dead woman's savings, Sarah is instead thrust headlong into a kaleidoscopic mystery as she realizes the dizzying truth: she and the dead woman are clones.

As Sarah searches for answers, she discovers the chilling fact that there are more people like her out there - genetically identical individuals who were planted in unsuspecting birth parents and nurtured in completely different circumstances. With no idea who created the clones, she'll need to discover the reason in a hurry as an assassin is hugging them one by one.