Derrick Kosinski

A grueling challenge leaves one All Star blaming another for his or her poor performance; an unexpected new romance blooms.

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.

TJ surprises the challengers with a blast from the past and a new rivalry is born; the high-altitude "High Stakes" challenge leaves some players flying high, and others crashing down.

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.

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