Melissa Roxburgh, Josh Dallas, Athena Karkanis
Watch on NBC - When Montego Air Flight 828 landed safely after a turbulent but routine flight, the crew and passengers were relieved. But in the span of those few hours, the world had aged five years -- and after mourning their loss, their friends, families and colleagues had given up hope and moved on. Now, faced with the impossible, they're all 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.