The Death Date has arrived. As tensions erupt and revelations emerge, the passengers of Flight 828 reunite and face the unknown together.

All signs point to the end of the Earth, spurring the Stone family and the passengers to work together and decipher cryptic clues before time runs out.

The passengers race to solve their Callings as Saanvi tests a theory on the patients. Eagan makes a surprising move. Michaela confronts hard truths.

As the Death Date nears, Callings begin to take a toll on Cal. The group sends out a cry for help. A familiar face provides hope in an unexpected place.

Michaela and Jared make the most of their arrangement. Angelina receives support from Eagan. Panic grips the detainees amid devastation at the facility.

Desperate to stop Angelina, Ben makes a risky move that yields unexpected consequences. A family emergency sends Michaela in a different direction.

As terrifying plagues descend on the detention center, Saanvi scrambles for a solution and Michaela steps up in a crisis. Cal attempts to reach Angelina.

Michaela heads to a dock with Jared to look into Ben's Calling. Saanvi walks Cal through a daunting task. A dark presence infiltrates the Stone family.

Michaela finds a welcome distraction in helping Jared with an investigation. Cal tests a new ability. Ben and Saanvi try to decode a mysterious message.

As the passengers adjust to a frustrating new reality, Ben and Michaela seize an opportunity to solve a Calling, with the Registry in hot pursuit.