In a brand new limited series, twenty-two of the most iconic, boldest, and fiercest Challenge All Stars from the original The Real World and Road Rules return for a second chance at the ultimate competition as they vie for their shot at the $500,000 grand prize. Hosted by TJ Lavin, the nine-episode season will follow competitors as they face unprecedented, over-the-top challenges set in the Andes Mountains of Argentina. The Paramount+ original series welcomes back many of the greatest reality titans the franchise has ever seen, including some who haven't competed in more than two decades.