Claire speaks with Sean, who has no memories of her or their life together, and tries to get him to remember something.. anything about his past; Wes has an epiphany and heads back to Mali to take another look at the fulgurite, and Lena keeps a watchful eye on Minx to make sure that her conversations with Drill have ceased.

An astonishing breakthrough is made about Drill while Claire gathers together and talks to a group of children who have been contacted by it, and Wes makes a chilling discovery about Drill's possible mission.

While Wes is meeting with the President about his discovery, Drill targets a member of the President's family; Sean faces possible consequences for his collaboration with Drill; Lena gets help from Minx as she tries to contact Drill.