Derrick Kosinski

Twenty-two Challenge All Stars return for a second chance at the ultimate competition and a $500,000 grand prize.

Reunited in the house, two best friends clash, reopening decades-old wounds that threaten their relationship.

In the stifling Ycatan jungle, the final four pairs test the relationships they've built and are pushed to their physical, mental, and emotional limits as they race towards the prize.

TJ unveils a series of surprising twists as the challengers fight for their share of $500,000; several All Stars spelling skills prove highly questionable, risking their spot in the game.

The game reaches a fever pitch as the All-Stars scramble to survive the last challenge before the final; a moment of rage puts a power player's season in jeopardy; an injury could cost one pair their shot at redemption.

On a dusty highway, the All Stars tackle their most intense challenge yet; a decades-old friendship is shattered.