World's Most Dangerous Roads

Comedian Sue Perkins and adventurer Charley Boorman travel across Alaska to the notorious Dalton Highway - a dirt track built in the 1970s as a supply road to support the Trans-Alaska oil pipeline. Highway maintenance is a full time job here with avalanche units operating throughout the year. As Arctic conditions close in on them, the pair have to rely on the help of hardcore truckers for whom the highway is home. The rules of the road are: keep the CB radio switched on, don't exceed 50mph, and when an 18-wheel truck comes thundering down the rollercoaster of a road towards you, get out of the way!

Ed Byrne and Andy Parsons brave temperatures as low as 50 below to drive across Siberia's infamous Road of Bones.

During the tail end of the rainy season, Angus Deayton and Mariella Frostrup drive up Madagascar's eastern coast.

Actor Will Mellor cajoles one of his best mates - comedian Keith Lemon - to join him on a high-octane road trip in Albania.

Rhod Gilbert and friend and fellow comedian Angela Barnes cross Italy's most treacherous Alpine roads in Rhod's first adventure since being treated for cancer.

Old friends and fellow comedians Johnny Vegas and Lucy Beaumont take on perilous mountain drops and sheer cliff edges in a hair-raising trip on Montenegro's roads.

Jack Dee and Jake Lambert team up for a thrilling ride through the wilds of Kyrgyzstan, battling terrifying mountain roads, and a mystery illness that threatens their entire trip. Starting from the capital, Bishkek, Jack and Jake face multiple obstacles, from horrifyingly narrow roads with only a sheer drop for company, to muddy tracks rendered almost undriveable by rainstorms.