Thinking they might actually be able to defeat this unseen foe, Wes convinces the President to let him round up all of the children in a protected zone in the hopes that Drill will weaken.

One of the children is taken over by Drill, but not everyone is sure which one it is, leading to confusion and fear.

Drill's mysterious end game is put into motion and the team must do their utmost to stop it before it reaches its final - and possibly deadly - conclusion.