(Season 4 Episode 4 of 9): The teams travel 1,400km through Thailand to Mae Sariang. Race Across the World airs on BBC One London at 9:00 PM, Wednesday 1 May. The teams travel 1,400km through Thailand to Mae Sariang
(Season 4 Episode 4 of 9): The teams travel 1,400km through Thailand to Mae Sariang. Race Across the World airs on BBC One London HD at 9:00 PM, Wednesday 1 May. The teams travel 1,400km through Thailand to Mae Sariang
(Season 4 Episode 3 of 9): The teams enter South-east Asia for the first time. Race Across the World airs on BBC Two HD at 6:00 PM, Sunday 28 April. The teams enter South-east Asia for the first time
(Season 4 Episode 3 of 9): The competition intensifies as the team in last place face elimination. Race Across the World airs on BBC One London at 9:00 PM, Wednesday 24 April. The competition intensifies as the team in last place face elimination
(Season 4 Episode 3 of 9): The competition intensifies as the team in last place face elimination. Race Across the World airs on BBC One London HD at 9:00 PM, Wednesday 24 April. The competition intensifies as the team in last place face elimination