Memorable contestants from previous seasons of ``The Bachelor'' and ``The Bachelorette'' live together at the mansion and compete for a $250,000 prize. In each episode, the contestants compete in a challenge to win immunity and a date with the contestants of their choice. After the date, there is a rose ceremony and eliminations, where the contestants vote off one man and one woman. In the end, one player emerges as the victor, and hopefully will have found love along the way. Chris Harrison hosts.