Orphan Black
Season 1, Episode 4: Effects of External Conditions
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Sarah realizes that the Orphans’ survival is going to take more than police work. But tracking the killer threatens Sarah’s long awaited reunion with her daughter, Kira. As Sarah gets closer to the killer, the killer gets closer to the truth – the ensuing showdown threatens to expose her ruse as a cop.
All Episodes - Season 1
Episode 1
Natural Selection
Episode 2
Instinct
Episode 3
Variation Under Nature
Episode 4
Effects of External Conditions
Episode 5
Conditions of Existence
Episode 6
Variations Under Domestication
Episode 7
Parts Developed in an Unusual Manner
Episode 8
Entangled Bank
Episode 9
Unconscious Selection
Episode 10
Endless Forms Most Beautiful