The plot: A mysterious disease has spread across the United States, killing most of the children and giving the survivors superhuman abilities. Out of fear of what the disease, or its carriers, could do next, children are rounded up into camps and, if any of them are too powerful, they are exterminated. One of the kids, Ruby (Amandla Stenberg), finds a way out of one of the camps and comes across runaways Liam (Harris Dickinson), Chubs (Skylan Brooks) and Zu (Miya Cech). With the government hunting after them, and no certainty of which (if any) adults they can trust, they'll have to rely on each other in order to survive.
