Jun 22, 2011 · 42m
Twenty-eight Challenge competitors arrive in Costa Rica only to find out that they will be teamed up with their biggest rivals. And a fight on night two sends one Challenger home early.


Legends will fall. A new champion will rise.
Each Challenge pits numerous cast members from past seasons of reality shows against each other, dividing them into two separate teams according to different criteria, such as gender, which show they first appeared on, whether or not they're veterans or rookies on the show, etc. The two teams compete in numerous missions in order to win prizes and advance in the overall game.
Browse every episode and jump into details.
Jun 22, 2011 · 42m
Twenty-eight Challenge competitors arrive in Costa Rica only to find out that they will be teamed up with their biggest rivals. And a fight on night two sends one Challenger home early.
Jun 29, 2011 · 42m
On the first men's elimination day, the competition is crushing, and everyone is surprised at who ends up fighting for their lives in the Jungle. Jonna and Camilla have it out, but it's Jasmine who takes the fight to the next level.
Jul 6, 2011 · 42m
A strong team struggles on the girls' elimination day.
Jul 13, 2011 · 42m
The guys plot to send CT home, while Laurel and Mandi vie for his attention. Also: Kenny worries that he's lost his competitive edge.
Jul 20, 2011 · 42m
Things get heated between teammates Jasmine and Jonna, and a blowout between the girls changes the game. Meanwhile, Adam pursues Jenn.
Jul 27, 2011 · 42m
Evan considers throwing a challenge as part of the guys' plan to get rid of CT. Meanwhile, CT finds himself in the middle of a love triangle with Mandi and Laurel.
Aug 3, 2011 · 42m
One alliance begins to crumble after a brawl between Jenn and Cara Maria. Later, a surprise twist changes the game.
Aug 10, 2011 · 42m
Some players crack under pressure as the final challenge approaches; Laurel defends Cara Maria after Wes and Paula drive her to tears.
Aug 17, 2011 · 42m
Two strong male teams fight tooth and nail in "T-Bone," the last elimination of the season. A clue sends the remaining twelve Challengers off to another destination, where they begin the toughest Final in Challenge history.
Aug 24, 2011 · 42m
With the Final underway, teams thrive or fail based on their ability to work together. One male team and one female team will claim the title of Challenge champions.
Aug 31, 2011 · 42m
The "Rivals" cast reunites and dishes about what went down on the 21st season.
Sep 7, 2011 · 42m
Outtakes and previously unseen footage for the 21st season.
Quick answers about this season's release timeline and episode lineup.
The Challenge Season 21 premiered on June 22, 2011.
The Challenge Season 21 has 12 episodes.
The season opens with Season 21 Episode 1, "Welcome to the Jungle". It aired on June 22, 2011.
Go to Season 21 Episode 1