A devastating loss is eclipsed when word reaches Sarah that Helena has been kidnapped!

Mrs. S orders the sisters to take a night off from sleuthing to celebrate Felix's art opening

Rachel discovers a dark secret that makes her question her place within Neolution

Krystal stumbles onto a vital clue to the Neolution endgame

Cosima joins Delphine at the mansion for a twisted family dinner

Cosima's research leads her to a discovery more terrible than she could have ever imagined

Alison seeks to return to her community center, but Bailey Downs has moved on from her

Captured by Neolution Sarah receives a damning ultimatum from Rachel

Sarah is deeply wounded and struggling to stay alive on the Island