“Orphan Black” follows outsider, orphan and street-wise chameleon Sarah. After witnessing a woman’s suicide, 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.

The series follows a Federal Bureau of Investigation "Fringe Division" team based in Boston. The team uses unorthodox "fringe" science and FBI investigative techniques to investigate a series of unexplained, often ghastly occurrences, some of which are related to mysteries surrounding a parallel universe.

Join the crew of the Seaview aboard their super high-tech submarine, where no mission is too dangerous and no threat is too deadly, be it enemy agents, mad scientists, deadly sea creatures, or impending nuclear disaster.