The Challenge

The dirtiest players in Challenge history arrive in Cartagena, Colombia, and head to a citadel for a surprise from TJ and their first challenge.

The eliminated players learn their fates are not yet sealed, CT joins the game, and the challengers try not to fall into water in Cool Under Fire.

TJ reveals an elimination twist called The Double Cross, Tori faces a possible setback, and Battle Royale gets the players running a set of rings down a narrow hallway.

Devin and Darrell start planning for their futures in the Redemption House, Nelson and Tony face consequences after a wild night out, and Jenna and Kailah's friendship is targeted.

Before starting Man Overboard, a game in which challengers race to push one another off a platform into water, TJ welcomes the Redemption House players back into the fold.

Jenna is out for revenge on Marie, the players carry treasure chests across a beach obstacle course in Pirates' Treasure, and Jordan comes under fire for a cruel joke about Jemmye.

Marie discovers another twist in the game, the players must place all 30 Challenge logos in order in Up and Downs, and Aneesa's ankle injury comes into question.

The underdog alliance, Hunter and Cory, is forced to face off in a spectacular elimination. The Challengers take part in TJ's favorite challenge - trivia. Two Challengers are caught in a dirty, compromising position.

Two players get caught in a compromising position, Camila makes racist remarks during a drunken outburst, and an alliance is tested in the elimination game called Rampage.

Tony struggles to accept a drunken blunder, Aneesa finds out ladies in the Main House have been gossiping about her, and Redemption Housemates eat disgusting foods in Green with Envy.

A call home makes Hunter question his future in the game, the players race across platforms suspended over water in Saved by the Bell, and a drunken argument gets physical.

Two close friends must face off in a twisted elimination. A Redemption House twist shocks the players. A surprise in the game allows the winners of the challenge to make an unprecedented power move.

Two top competitors are sent directly to the Redemption House, an unexpected dirty move at the Double Cross blindsides one player, and Cara Maria sets her sights on revenge.

The challengers test their fear of heights walking on a beam over a skyscraper in Backstabber, a rivalry boils over at the Redemption House, and Camila and Tori come to blows.

The Redemption House players compete in a final winner-take-all battle, TJ reveals a shocking surprise, and four challengers earn a guaranteed spot in the final.

As the top six players start the final battle for the $1 million prize, one player has a crash landing into the course, and the pairs struggle to navigate high-altitude ruins.

In the final challenge, the players must stomach fermented llama milk, mountaineer high-altitude canyons and solve puzzles while they battle for their share of the $1 million grand prize.

As the challengers reunite for the first time since the final, The Miz talks to Simone and Shane talk about the fight that got them disqualified, and Tori and Derrick H about the state of their relationship.

Reunion host The Miz asks Tony about his drunken incidents, Leroy weighs in on Camila's racist attacks, and TJ helps reveal the $1 million-winner of The Challenge XXX: Dirty Thirty.

The Miz hosts this behind-the-scenes look at The Challenge XXX: Dirty Thirty reunion featuring Johnny Bananas's backstage warm-up, extended onstage drama and the players' dirtiest secrets.