Day 5 — Season 1

Ally's co-worker Emily sets out to reconnect with another medical facility.

A group of scientists fight exhaustion as they search for a cure that could save millions.

When two reporters receive a news tip that could change the fate of the world, they struggle to write the most important story of their lives.

This behind the scenes documentary tells the story of how Day 5, a project five years in the making, finally became a reality.

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

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

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

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

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

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