Alain Gachet quit a lucrative career in oil to search for water underground. Colleagues told him he was a 'crazy donkey', but he was soon finding water for desperate refugees. Show more
Discover 11,128,835 listings and 277,897 playable programmes from the BBC
Alain Gachet quit a lucrative career in oil to search for water underground. Colleagues told him he was a 'crazy donkey', but he was soon finding water for desperate refugees. Show more