I was happy to see the Ginger Snaps alumni working together again. I love the show. It's very tense. My favorite clone is Casima. She's nerd cool.
I thought Paul was dead weight until the latest episode. That was a great twist. Mrs. S would be the most direct, logical choice to be Sarah's spy but it would also be too easy. Though it would explain why she moved the kids to Canada. Maybe running away from the people behind the whole thing? We'll see soon enough.