When Montego Air Flight 828 landed safely after a turbulent but routine flight, the crew and passengers were relieved. Yet in the span of those few hours, the world had aged five years, and their friends, families, and colleagues, after mourning their loss, had given up hope and moved on.

Faced with the impossible, the passengers have all been given a second chance. But as their new realities become clear, a deeper mystery unfolds, and some of the returned passengers soon realize they may be meant for something greater than they ever thought possible.

Over a year has passed since the miraculous homecoming of Flight 828 and the discovery of others who have mysteriously returned. While the Stone family endeavors to keep their friends safe and make their enemies believe the unbelievable, new challenges will test their trust of the callings and each other. But sticking together is more important than ever, because no matter what happens, it's all connected.

As the Death Date draws closer and the passengers grow desperate for a path to survival, a mysterious passenger arrives with a package for Cal that changes everything they know about Flight 828 and will prove to be the key to unlocking the secret of the Callings in this compelling, mind-bending, and deeply emotional journey.