Jemmye Carroll

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

The All Stars begin day one of TJ's grueling final; they'll not only be pushed to their physical and mental limits, but also must rely on the relationships they've built in order to succeed.

The gloves and clothes are off at the muddy "Playing Dirty" challenge; the newly formed Treehouse alliance makes major moves to crush players who stand in their way; a pair of shocking surprises threaten to completely change the game.

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.

TJ is delighted to welcome the challengers to the hilarious and high flying "Shooting Stars" trivia challenge; an All Star's politicing puts another player's game in danger; a pair of heavyweight matchups in the arena sets the stage for two battles.

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