Sarah fights for her life on the Island and tries to stay strong enough to rescue Cosima; Cosima and Delphine reunite.
Helena takes shelter behind enemy lines, and Sarah and Art struggle to protect her and end the siege.
Westmoreland demands a more aggressive action on Kira; Sarah fights to save her daughter; Rachel discovers a dark secret; Cosima has a clue about Westmoreland's identity.
Sarah and Kira spend time at home; secrets are unlocked about Kira's gifts; Cosima joins Delphine at the mansion.
Sarah sets out to bring down Neolution once and for all.
