Season 30.
Season 1.Season 2.Season 3.Season 4.Season 5.Season 6.Season 7.Season 8.Season 9.Season 10.Season 11.Season 12.Season 13.Season 14.Season 15.Season 16.Season 17.Season 18.Season 19.Season 20.Season 21.Season 22.Season 23.Season 24.Season 25.Season 26.Season 27.Season 28.Season 29.Season 30.Season 31.Season 32.Season 33.Season 34.Season 35.Season 36.Season 37.Season 38.Season 39.
Number of episodes: 20
Synopsis:
To celebrate the 30th season of The Challenge, MTV is bringing back the dirtiest and most unpredictable players in The Challenge history for the biggest prize ever - $1 MILLION DOLLARS! This devious bunch will stop at nothing to win the game and compete against each other on The Challenge XXX: Dirty 30. Fifteen men and fifteen women will have to fight their way through some of the craziest, most daring challenges yet. And with this devious assortment of players, the backstabbing and masterminding will be just as intense off the field as on the field. Trust. No. One.
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Episode 1.Thirty Rotten Scoundrels
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Episode 2.
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Episode 3.
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Episode 4.
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Episode 5.
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Episode 6.
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Episode 7.
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Episode 8.
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Episode 9.
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Episode 10.
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Episode 11.
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Episode 12.
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Episode 13.
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Episode 14.
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Episode 15.
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Episode 16.
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Episode 17.
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Episode 18.Finale Part 1
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Episode 19.Finale Part 2
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Episode 20.The Final Dirt
Noah's Ark 
The Bourne Identity 
Taffy 
First Kill 