Jay and Ray Grayson are twin brothers, and they are pretty tired of the whole twin thing. They are never truly seen for who they are as individuals. Instead they're just seen as 'the twins.' So, when they start a new school, and the paperwork shows only one of the twins being enrolled, the boys decide to conduct an experiment. For one week they're going to take turns going to school, but, even though they look identical, the experiment shows how very different they are.