Ian Butcher

As the countdown to the climactic series finale continues, the Fringe team is running out of time to save the world. As Peter, Olivia, Astrid and Walter scramble to tap into a key piece of the puzzle to defeat the Observers, they enlist the aid of Nina Sharp who conjures up a plan.

Walter enters the lab's deprivation tank to uncover information about the mysterious Donald, while Windmark sets out on a revealing mission of his own.

David must choose between Kathryn and Mary Margaret, with whom he has fallen deeply in love; Sheriff Graham is caught in a lie; Prince Charming's destiny alters.

Kiera and Carlos's reunion is a bumpy one as they attempt to thwart Liber8's brazen hijacking of a prison transfer.

Buddy falls into a deadly criminal's trap; the church council unites to stop an arson attempt on Ladner Trinity; Dora reconnects with her high school crush.

Anna introduces her pilot program to invite select groups of humans to stay on each of the 29 spaceships, and Ryan must deal with the fact that Valerie's pregnancy is wildly accelerated. Plus, Tyler learns a secret about his mom, Erica, and someone makes a sacrifice to save Ryan. Recurring guest star DAVID RICHMOND-PECK appears as Georgie.