Each of the Cure are taken by the US Armed forces for testing and are given monitors for it they misbehave they will be shocked. Then assigned each group to one child with a problem. When each of them see how close they became to the kids families. They must choose their real family or the family assigned to them. Until the kids give their speech at school that they want to help their friends get home. Greatful the cure defend them even at the cost of their lives on their journey. Its not about wether you live so far or so close..... It matters if you have a friend close by to help return you home.