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World Race: The Greatest Challenge
Just as the teams get ready for the Greatest Challenge, a giant and deadly road blocking device, Kurt's younger brother Mark joins in on the adventure. But, as enthusiastic as Mark is, Kurt doesn't want his kid brother around. Fortunately, Vert is impressed by the driving ability of his rival's brother so he asks Mark to join the Wave Rippers.
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Other episodes for this season
![World Race: Ring of Fire](https://image.tmdb.org/t/p/w300/ke7RqZtbCIjtFx23wkX2BfrxxqQ.jpg)
![World Race: The Greatest Challenge](https://image.tmdb.org/t/p/w300/ke7RqZtbCIjtFx23wkX2BfrxxqQ.jpg)
![World Race: Desert Heat](https://image.tmdb.org/t/p/w300/ke7RqZtbCIjtFx23wkX2BfrxxqQ.jpg)
![World Race: Frozen Fire](https://image.tmdb.org/t/p/w300/ke7RqZtbCIjtFx23wkX2BfrxxqQ.jpg)
![World Race: Wheel of Power](https://image.tmdb.org/t/p/w300/ke7RqZtbCIjtFx23wkX2BfrxxqQ.jpg)