Sarah quickly draws closer to Rachel's life as Cal saves the day and Daniel becomes a problem. Alison is still the one who brings a humorous touch, while Helena brings us back to a horror atmosphere. The Ukrainian killer remembers her disturbing medical procedure and finds her sister, her dress stained with blood and hair strewn with branches. I really like the scene where Cosima explains that Rachel must have been raised in a very cold and loveless environment while Sarah watches a video of a young Rachel playing with her parents, thus proving the scientist's theory wrong.