After leaving a player behind in the land of music and rolling hills, the X-bus now makes its way to one of Europe's biggest winemaking regions and the halfway point on this extraordinary journey. But while host Rob Brydon raises a glass with the passengers, he still has plenty of tricks up his sleeve. In an ancient vineyard, he tests the players' knowledge of each other and reveals who they consider to be their biggest threat. And one lucky player wins a game-changing advantage - the ability to sabotage one of their rivals in the map room.But as the players make their way closer to Destination X, they also stop off at an ancient walled city to pair up for one more challenge that could win them a valuable clue. Alliances are tested as vital information isn't shared with everyone, and one passenger uses their incredible power - sabotage a teammate and affect their X on the map. But who will they choose?