Sarah and Mrs. S follow a lead on a Neolution defector, hoping for enough leverage to free Kira from the Dyad institute’s clutches.
Sarah’s day off to reconnect with Kira quickly turns into a sleuthing mission aimed squarely at discrediting Felix’s new ties.
A devastating loss is suffered; Sarah learns that Helena has been kidnapped; Clone Club bands together to find Helena before her babies are born.
Sarah forms an uneasy alliance with a former nemesis in an attempt to bring down a common enemy.
Alison's loyalty to the clones is questioned. Cosima makes a final attempt to discover a cure.