The return of the reality challenge in which 16 strangers gather in the paradise islands of Ha Long Bay, Vietnam and compete to be the first to get their hands on a £200,000 jackpot. Split into two team, they must race to build a bridge over 1,000 feet of water in just 12 days to reach the cash held on top of Fortune Rock. The question is, will whoever reaches the money first choose to share it with their team-mates?

The contestants finally discover they are not alone - this is a race, and only member of the team that reaches the island first is in with a shot at the £200,000 prize. With both groups way behind schedule, will this new information spur them on? Meanwhile, moles David and Alex return to dish the dirt, and two members of each team face a dilemma - do they take 10 anchors back to the build or secretly pocket £10,000?