The Bridge UK

Two teams race to build a 1,000-foot bridge across the South China Sea in just 12 days, to win £200k.

One member of each team becomes a mole in the opposing camp.

The teams finally discover that they're not alone, injecting a much-needed burst of energy; David and Alex return to dish the dirt.

Both teams are behind schedule, Aldo Kane offers a lifeline in the form of a challenge: an epic tug-of-war.

Host AJ Odudu throws the teams a curveball: any contestant can now put themselves forward to switch beaches.

North Beach go on a recon mission; the contestants' moral compass is tested when they are offered the chance to walk away from their team.