1. Episode 1

4

. 20 February 2023. 45 min

Celebrities compete in athletic challenges for a share of a £100,000 prize fund.

2. Episode 2

4

. 21 February 2023. 45 min

Alliances are formed in a test of endurance and memory.

3. Episode 3

4

. 22 February 2023. 45 min

Model and reality star Arabella Chi faces a dilemma: will she stay loyal to an old friend?

4. Episode 4

5

. 23 February 2023. 45 min

One player questions if her friendship is worth risking £50,000 for?

5. Episode 5

6

. 23 February 2023. 45 min

Host Mark Wright presides over the Final, as the remaining Challengers race across the Argentinian countryside for their share of £100,000, and to be crowned Challenge UK Champion.