Twenty-two of the most iconic, boldest, and fiercest Challenge All Stars from the original The Real World and Road Rules have been selected to return for a second chance at the ultimate competition. All have history, but when relationships are the key to survival, will these legends be able to form new bonds or will their past lead to their demise? With $500,0000 and their legacies on the line, which of these All Stars will prove they are still the best of the best?