Episode 1 | Meet the Couples

Our five pairs set off on a race to Singapore without taking a single flight. They leave behind their smartphones, internet access and credit cards. All they have is the money that the air fare would have cost.

Episode 2 | Delphi - Greece

The teams set off from Greenwich. They must pass through five checkpoints to reach their final destination. First up: the ancient city of Delphi.

Episode 3 | Baku - Azerbaijan

The five teams head out of Delphi to their next checkpoint - Baku, the capital of Azerbaijan - a journey that sees them leave behind the familiarity of the west.

Episode 4 | Tashkent - Uzbekistan

They depart Baku, the capital of Azerbaijan, on the third leg of the race - taking them across the vast deserts, mountains and Silk Road cities of Central Asia to the ancient capital of Uzbekistan, Tashkent.

Episode 5 | Huangyao - China

The global travel series reaches another level this week as the four remaining teams enter the People's Republic of China.

Episode 6 | Cambodia and Vietnam

In the penultimate leg of their journey, the remaining four teams head through the dense forests and bustling metropolises of Cambodia and Vietnam.

Episode 7 | Marina Bay - Singapore

Four teams complete the final leg of the Race Across the World, as the teams race 1,500 miles down the Malaysian Peninsula to Singapore.