BMX Legend TJ Lavin welcomes 28 competitors from Survivor, Big Brother, The Amazing Race, and Love Island to The Challenge. With old rivalries, new alliances, messy exes, and fractured friendships under one roof, who will be the first eliminated?

The Challengers are shocked by TJ's latest twist. A Survivor legend looks to cement their dominance in the game, while a crafty Big Brother player might be proving a little too popular with other Challengers.

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?

The 18 reality titans from "Big Brother," "Survivor," and "The Amazing Race" are shocked to learn that they are competing amongst six legendary veterans from MTV's "The Challenge"; a new twist puts multiple players at risk at the first elimination.

The challengers battle it out in a difficult water challenge; a new alliance is formed to target a veteran; romance blossoms between two teammates.

The challengers compete in a difficult swimming challenge; a vet turns on one of their own in an act of self-preservation.

A shocking double elimination leaves the challengers scrambling to win a high-stakes, adrenaline filled semitruck challenge to ensure their survival in the game.

"The Challenge" vets come up with a plan to take advantage of a growing rift among the rookies, resulting in one of the most shocking hopper results of the season.

Things get heated between two rookie players; the competitors brace themselves for host TJ Lavin's favorite challenge of the season, trivia.

A pair of "Challenge" vets play cupid as romance blossoms for a couple of former "Big Brother" houseguests; TJ makes a shocking announcement that impacts the game for the remainder of the season.

The game takes a dramatic turn when TJ announces that teams are no more, strategy shifts for several players, and a shocking draw from the hopper forces two ride or die allies to go head to head in one of the most grueling eliminations yet.

Michaela sets her sights on a fellow "Survivor" player who could be a threat to her game.