2: A Germ is Life by MARTIN WORTH In the small French town of Arbois stand the graves of Louis Pasteur's three young daughters. Two had died from typhoid, one from an inoperable tumour - a stark reminder of the background to his struggle to find the cause of disease. Music composed by DUDLEY SIMPSON Producer PETER GOODCHILD Director PETER JONES

3: Men of Little Faith by JOHN WILES The early 1870s. Although a revolution is under way in the understanding of disease, ignorance and opposition to the new ideas exist at all levels. Can Pasteur or Koch find a practical outcome of their experiments that will convince the sceptics? Music composed by DUDLEY SIMPSON Film editor ROY FRY Producer PETER GOODCHILD Director PETER JONES

4: Certain Death by BRUCE NORMAN On 6 July 1885 young Joseph Meister was brought to Pasteur's laboratory. He had been savaged by a rabid dog and bitten 14 times. Death from rabies seemed certain, unless Pasteur would treat him with an untried and possibly lethal vaccine. Music composed by DUDLEY SIMPSON Film editor CLARE DOUGLAS Producer PETER GOODCHILD Director SIMON LANGTON