Twelve contestants attempt to build an 850-foot bridge with minimal supplies in 20 days for a chance at £100,000.
The epic challenge continues; Luke and Maura return from their mission with a secret; Zac's leadership is questioned as the team fall behind schedule; two arrivals cause a stir.
Newcomers Ross and Susie must evict a teammate; as hunger and fatigue take hold, tempers fray; a flare brings the promise of a luxury.
Three teammates are chosen for an overnight task, but only two will return; with time running out, the camp experiences a major breakthrough.
AJ Odudu
Host
James McAvoy
Narrator
Warren Smith
Producer
Rick Murray
Michelle Chappell