Episode 3 - Hainan to Yunnan, China

In the third leg, the five pairs are challenged to race from the island checkpoint of Sanya to the mysterious Shangri-La, a city sitting on the edge of the Tibetan plateau towards the foothills of the Himalayas. As race leaders Elizabeth and Letitia check out, ex-married couple Yin and Gaz have only just made it in, having been stuck on the mainland unable to cross. With an almighty 44-hour gap between first and last place, Yin and Gaz know they have a mountain to climb to remain in the race, but are determined to come out for leg three fighting