Someone with a message for Beth Childs contacts Art, and he looks to Felix for help in getting the information. After learning of Cosima's illness, Sarah struggles with turning over a crucial piece of leverage to Dyad. Meanwhile, Donnie wrestles with both guilt and facing the consequences of one of his actions just as Alison gets home from rehab.

We discuss the eighth episode of the second season of Orphan Black, "Variable and Full of Perturbation."

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