Five American teen couples arrive at an Idaho cul-de-sac to participate in an experiment asking them to see what kind of parents they would make, whether they could handle adult responsibilities and to test their relationships by looking after other people's babies and children. The couples take care of pre-teens and pets, which proves to be challenging in a whole new way. Some of the tweens fight to the point of violence, some are destructive, some are picky eaters and others become friends with their teenage carers instantly. There's a sleepover party for all the kids at one house, while the teens receive visitors from home. The couples struggle with their own relationships, and even the real life parents learn something from watching.