The teams are three days into their challenge and are forced to appoint leaders in the hope of kick-starting their bridge builds. One member of each group is also given the chance to be a mole. Who will feel the pressure and who will stop at nothing in the race to the money?

The halfway point arrives but both teams are far from reaching their target. South Beach's bridge has been destroyed by rough tides, while the North Beach contestants have fallen apart by tension and in-fighting. Just when it seems all hope is lost, Aldo Kane offers the teams a lifeline in the form of a tug-of-war challenge, which sees them literally fighting over 100ft of bridge in the hope of pulling it back to their own beach.