4400 ignored, underestimated, or otherwise marginalized people who disappeared without a trace over the last a century are all returned in a split second, having not matured a day and without any memory of what happened to them. As the federal government races to assess the possible risk as well as consist of the tale, the 4400 themselves need to grapple with the fact that they have actually been returned with a few ... upgrades, as well as the increasing possibility that they were all brought back now for a details reason.