The Challenge

Each Challenge pits numerous cast members from past seasons of Real World and Road Rules against each other, dividing them into two separate teams according to different criteria, such as by gender, which of the two shows they first appeared on, whether or not they're veterans or rookies on the show, etc. The two teams compete in numerous missions in order to win prizes and advance in the overall game. Following each mission, two cast members from each team are voted into an elimination round, in which they must compete against one another to determine which one is eliminated from the overall game and must leave the show.