Hugh Bonneville and Jessica Hynes were a perfect match in BBC Two's comedy hit Twenty Twelve. Now they pair up again for a terrifying road trip through the former Soviet state of Georgia.

Driving from the border with Azerbaijan to the Black Sea, Jessica soon discovers her spirit of adventure causes Hugh a few moments of high anxiety. Yet Hugh realises that there is plenty more to come as they find themselves stuck on a high mountain pass in bad weather and he must overcome his vertigo. 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. Show less