In 2001 a group of authors including Andrew O'Hagan, Tony Hawks and Irvine Welsh were given the opportunity to visit Sudan, one of the world's most inaccessible countries. The resulting book: The Weekenders - Travels in the Heart of Africa was an award-winning triumph, combining fiction and non-fiction into a compelling travel narrative that was both entertaining and illuminating. Now the Weekenders are back, joined by some new faces and taking on one of the world's most fascinating and contradictory cities - Calcutta. It is a trip like nothing you've ever seen or heard of before.