One castaway tries to get back at the person who eliminated their day one; a castaway's journey becomes a race against mother nature to outrun the tides; a new version of a familiar challenge stands between castaways and the immunity necklace.

A boat arrives containing instructions for an advantage for the final five immunity challenge; it's anyone's game during this season's fire-making showdown; one castaway is crowned Sole Survivor and awarded the $1 million prize.