As the Stones race to find the Omega Sapphire, Ben finds hope in a Calling that reunites him with a familiar face. Zeke faces a difficult choice.

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 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.

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