Angus Deayton and Mariella Frostrup drive through Madagascar during the tail end of rainy season. This route is mired with mud and dotted with perilous river crossings.

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 and luckily, good enough friends to poke fun at each other as the road puts them to the test.

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. The roads themselves are mired with thick mud, making progress increasingly painful, until finally the road gets the better of them and they are forced to spend a night in the car.