Fringe

In the fifth and final season premiere, Peter and his daughter Etta (GEORGINA HAIG) set out to find out what happened to Olivia.

The Fringe team revisits Walter's Harvard lab -- now under Observer control -- to locate information they need to fight on in their mission to save the world.

As the Fringe team continues to fight the Observers, unforeseen events lead them to a forest where they encounter a strange subculture of people devoted to recording human history.

When the Fringe Team tracks a lead into a hostile and heavily guarded location, Phillip Broyles (series star LANCE REDDICK) resurfaces ... but can he be trusted?

The Fringe Team goes on the offensive.

A key piece needed to defeat the Observers is uncovered.

The Fringe Team orchestrates a Fringe event of their own.

While Olivia encounters an intuitive oracle-like person (guest star JILL SCOTT) on a mission for Walter, Peter finds himself in a perilous situation as he observes Windmark.

Trying to recall his plan, Walter takes an LSD trip down memory lane. Meanwhile, Peter and Olivia trace a mysterious signal into the woods, where they come upon a grisly scene.

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.

The thrilling worlds of Fringe near the end in the first part of a two-hour series finale as Olivia embarks on a dangerous and otherworldly journey into the unknown.

The thrilling worlds of Fringe come to a mind-blowing end in the 100th episode and two-hour series finale as the team faces off against the Observers in one final battle.