Kayden Magnuson

Wes persuades the president to allow him to place all the children in a protected zone, in hope of weakening Drill; the team mourns a loss.

Sean, Claire, Wes and Lena look into the past of the man who first encountered Drill over three decades earlier -- before Drill murders him.

Confusion and fear permeates when one of the children is taken over by Drill, but it isn't clear who it is.

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.

The members of the team hope to stop Drill's end game from reaching its potentially deadly conclusion.