Pairs of celebrities attempt to tackle some of the most dangerous roads in the world.
Sue Perkins and Charley Boorman travel across Alaska to the notorious Dalton Highway. Contains some strong language.
Rhod Gilbert and Greg Davies attempt to drive through the mountainous nation of Nepal. Contains some strong language.
Ben Fogle and Hugh Dennis drive from the Peruvian Andes to the depths of the Amazon. Contains some strong language.