A reality show contest where sixteen or more castaways split between two or more âTribesâ are taken to a remote isolated location and are forced to live off the land with meager supplies for roughly 39 days. Frequent physical challenges are used to pit the tribes against each other for rewards, such as food or luxuries, or for âImmunityâ, forcing the other tribe to attend âTribal Councilâ, where they must vote off one of their players.