Dangerous Roads

Driving up Madagascar's eastern coast at the tail end of the rainy season is enough to test the best of friends. Angus Deayton and Mariella Frostrup are game enough to take on the challenge. It is a route with countless river crossings, offering Angus and Mariella a terrifying variety of broken bridges and flimsy ferries as the only way across.

Hugh Bonneville and Jessica Hynes pair up for a terrifying road trip through the former soviet state of Georgia. While the drive is a challenge all the way, the pair are transported into a land that time forgot as Georgia and its people delight and surprise them at every turn.

Funny men Phill Jupitus and Marcus Brigstocke head to Bolivia for a high-altitude road trip that promises adrenalin, hilarity and drop-dead beautiful scenery. Their goal is to reach the ancient mountain city of Potosi whose silver once financed the great Spanish empire, but at almost 5000 meters above sea level this proves to be a heart stopping finale.