While Cosima heads to the island that time forgot, Sarah and Rachel join forces to take down Evie Cho. Meanwhile, some familiar faces return in the penultimate episode of Season Four.
You know that line from Clerks about life being a series of down endings? Well, “From Instinct to Rational Control” had a number of downer endings. That didn’t make it a bad episode, mind you, and by episode’s end, we learn even more about the larger plan to create a more perfect human being.