As Ellis heads for Dallas, Jake, Sam and Ally are diverted by a new kind of foe.

In the season finale, alliances at Dr. Abrams' facility are pushed to a breaking point; Ellis' group puts their theory to the test.

Ellis' plan hits a snag, just in time for some sleepless delirium to settle in.

New clues converge in Dallas, while Ally attempts a dangerous reunion in Austin.

Lex shows her research to Ally; Ellis investigates a mysterious signal.

After an extended drug bender, addict Jake ventures out into the quiet streets to discover he's actually missed a terrifying global phenomenon.

The team hunts for Gabbi and any chance to track down the Safe Sleep Zone, as Aidan and a new ally attempt to enter the Sandman's Oasis.

Aidan and Paula check out their new "home" and the others deal with a group of maniacs who have a unique way of staying awake.

The group find themselves on a plane, piloted by an Ellis trying to hide his mental state from the others. Abrams gives out why he is no longer working in the facility.

As the fractured teams close in on the camp, a chance encounter pushes one hero to the breaking point. Aidan's actions at the Oasis have unexpected consequences.

Ellis finds his way to an aerodrome, meeting Aiden, who is being held at gunpoint and made to fly a light plane.

When some "heavenly" beings come to earth and makes sleeps deadly, Follow along with Jake and the rest of the crew through car chases, planes crashing, gun fights all will not sleeping.Just remember to stay awake.

The team pursues the Oasis through the desert, as Aidan navigates the politics of the camp. Meredith finds an unlikely ally in her new assignment.

Forces converge on The Oasis and the battle for the sleep zone begins.