Sealed bids to win a luxury night away from camp lead to outrageous spending. With the whole team reunited after 48 hours of being split in half, tempers flare, as each group's spending is revealed...

A vast ideological split has formed between the trekkers. Will any of them trade a chunk of the prize money for an evening in a living room that's just like home?

Fatigue is setting in and the mood in the group is at an all-time low. They could do with a pick-me-up - just like a lavish party that's plonked right in their path...

Alliances are starting to form, and as bodies ache and morale drops, the temptations are becoming harder to resist.

The 11 remaining fortune-seekers are split into three separate camps for 24 hours, leaving them with no clue whether the others have given in to temptation or not. Each group is tempted with a luxurious alternative to sleeping on hard wooden boards: a glamping experience, complete with midnight feast. Meanwhile, when the fortune-seekers face a leech-infested trek through murky waters, will anyone take up the offer of an air-conditioned taxi ride to their next campsite?

Twelve Brits land in South Africa to begin a gruelling 18-day trek. Will they spend any of their prize pot along the way? When a single shower costs £1000, the bill can rack up quickly...

The finish line is tantalisingly close, but the biggest bombshell yet is about to be dropped on our unsuspecting trekkers. When all the spending is done, what will remain in the final prize pot?

The group are dealt a devastating blow and the prize fund takes a big hit. The campmates are tempted with coffee and pastries, and an all-you-can-eat Chinese buffet - but both will come at a cost.