After hitting the road with Felix, Sarah is forced to turn to a ghost from her past - an old flame named Cal Morison. When their brief respite is brutally shattered, Sarah realizes that no matter how far she runs, it will never be far enough.
After witnessing a woman's suicide, 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 killing them one by one.
Orphan Black - Mingling Its Own Nature With It Synopsis and Schedule