For 60 years, "alien hijacking" has occurred repeatedly, but one day in July 2007, as a comet flew towards Earth, the panic-causing impact did not occur, but 4,400 people who had been hijacked in different years returned to Earth at one time. After a series of medical observations, the U.S. Department of Homeland Security plans to place them and help them return to society, but these people gradually begin to show "special functions", some of them will be ideologically treated, some can "dream", some can hear other people's thoughts, but for them, how to continue to live is the most important thing, the period of being "hijacked" seems to have been cut off from their lives, the changes in the world have made them unexpected, and there are still people chasing the truth of "hijacking", It seems that a larger mission awaits them......