Irish travellers reveal what keeps them on the road, and Christopher Russell reports from a Greek island. Plus music from cyberspace.
In the second of six programmes, he follows two men on a pilgrimage, trawls the world for hidden wealth and opens his suitcase to uninvited guests.
The third of six programmes features a traveller who dines on a moving feast, nice but naughty weekends away from reality, and a look at the real world of the travelling companion.
In the fourth of six programmes, poet Kathleen Jamie wanders and wonders, cross-Channel flyers say why they do it, and Christopher Russell samples a Thai massage.
The fifth of six programmes looks at Marco Polo's travels, voices in space, guinea pigs as a health cure, and why some people just have to come home.
In the last in the series, Russell Hoban explores the Coca-Cola culture. And a look at how one drop of blood unfolds a map of migration.