The series tells the story of 4,400 people who have disappeared from various parts of the globe over the course of 60 years and who, one day, appeared in a balloon of light on Highland Beach. R n r nAll 4400 made their appearance at the same time, without knowing what was happening to them and without having aged, regardless of the moment of disappearance. Later they will discover that each of them has an ability, possesses a gift that makes him different from ordinary people. It is unclear what happened, and the government is beginning to investigate them to find out where they disappeared and why they all returned at the same time. It soon becomes apparent that they will change the human race in a way no one has ever thought of.