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Jalou has 24 hours to get from Barcelona to Tarragona where she conquers the Catalonian mountains with her mountain bike. Kevin tries to beat her in Slovenia.
Kevin leaves civilization behind in Suriname, while thousands of kilometers away, Jalou has to go literally through the trees in an Australian forest.
Jalou and Kevin travel to far colder places to challenge each other in an ice climbing competition.
In the Chinese desert, Kevin finds out that desert racing is difficult. While in Bolivia, Jalou wants to prove to her brother that women can be better drivers.