Claire and Wes convince President Winters to round up all the children in the hopes that they will negate Drill's primary weapon against them. However, Drill manages to infiltrate the quarantine facility.
The team attempt to destroy Drill once and for all using the knowledge that they've gained. However, if they fail, Drill's retribution will be swift and terrible.
Kal and Abby travel to Canada in search of Tariq. Connor's sister Charlotte introduces him to an interesting new religion, and Beth and Simon receive a visit from someone unexpected back at The Lux. Following Nick's advice, Sabrina makes an important confession to her parents that changes everything.moreless
Abby panics after she and Gray make a very impulsive decision. Kal struggles to be honest with his father, and Beth worries that she might lose Simon. Nick finds his career sinking to new lows while Sabrina receives some potentially career-changing news. Raquel continues getting herself in deeper and deeper at work. Meanwhile, Connor's sister Charlotte makes a surprising move.moreless
The translucent shapeshifters return to plague Fringe division, and a former Massive Dynamic scientist is involved. Meanwhile, Walter meets with Nina Sharp.
A reporter is sent to Galactica to chronicle the harsh realities of life during wartime. Lucy Lawless guest stars as the television reporter, D'Anna Biers.