by David Fisher
[Starring] Ray Barrett, Geoffrey Keen, Philip Latham, Jennifer Wright
Guest stars Jack Watson, Ann Castle

'Oh yes, our Willy can fight really dirty when there's a principle involved.'
A world-famous leprosy hospital lies in the path of Mogul's exploration teams in East Africa. The ageing Dr Hoffmann who runs it is idolised by millions, including Willy Izard - who, with Thornton's help, has to cope with the problems involved.