While some alliances are growing in strength, others are starting to fall apart. A powerful duo starts to raise suspicions in the game, while a pair of newly mismatched Challengers' lack of team chemistry puts their games in serious danger.

TJ introduces the players to one of his favorite challenges - trivia! A vendetta from the past reignites in the Compound as a challenger seeks the ultimate revenge.

The most difficult water-based challenge of the season so far leaves some players swimming to survive the game, and whispers in the compound threaten to destroy a mighty alliance.

In the wake of a shocking blindside, players scramble for power and a pair of underdogs must choose between creating chaos or playing it safe.

Players are blindfolded and must navigate an epic crash course driving challenge.

After a game-changing twist, a secret alliance makes plans to take control of the game.

A vengeful player looks for payback after being sabotaged in the challenge. The reveal of a secret alliance turns the game upside down.

Players must scale a moving semi-truck in one of the most intense and fast-moving challenges of the season. A ruthless player schemes to pit two allies against each other.

The remaining players fight to secure spots in the fast-approaching Final. Who will survive the brutal conditions and TJ's twists and turns to earn the Challenge USA crown and $500,000?