Sixteen of the UK's finest stars from sports and entertainment join host Mark Wright to fight for their share of £100,000 and the title of Challenge Champion.

The Challengers head into the second Challenge, where their endurance and memory are put to the test and the first alliances are formed.

The Challenge is in full swing, and the name of the game is to survive another night. Alliances are tested, and some are stronger than others. Meanwhile, romance is at an all-time high. Two challengers take their relationship to the next level.

Challengers know that in order to guarantee their spot in the final, they will need to win the Frozen Senseless Challenge. Friendships are tested as one challenger questions if her friendship is worth risking £50,000.

The remaining Challengers put it all on the line as they race across the Argentinian countryside for their share of £100,000 and the title of Challenge Champion. Who will take home the money and represent the UK in The Challenge World Championship?