The plot develops around a group of people who got into turbulence during the flight. Upon returning home, the heroes were met by both relatives and FBI agents. It turns out that the time in flight dragged on for five years, which the heroes themselves, who were considered dead, did not know about. Returnees come to the conclusion that their relatives have learned to live without them. While some lucky ones are reunited with their families, others are in trouble. Former passengers of flight Montego 828 have an unusual gift, they can hear unusual calls for help from others. Most come to the conclusion that those lost in time should not be in the midst of society. In the upcoming season 4, the audience is promised the appearance of new heroes who may even rise from the dead. The revival of some of the characters was reported by showrunner Jeff Rake himself. The promising plans of the authors only fuel the audience's interest in the tape.