Clone Wars: Orphan Black S02E10 By Means Which Have Never Yet Been Tried

Sarah offers her unconditional surrender to Rachel and Dyad in order to free Kira, but the move prompts a number of unforeseen consequences. The four sisters unite for the first time, and we learn that Project Leda has split into two factions. Mrs. S trades Helena for Kira, and we've been introduced to not only male clones but also an 8 year old clone who acknowledges Sarah as her big sister.