Documentary series recreating a 19th-century pharmacy. At a time when cholera was one of the biggest killers in Great Britain, Ruth, Nick and Tom realise how the discovery of germs made disinfectants a best-seller in the pharmacy. To make their own brand they'll need to extract carbolic acid from coal tar in the lab with help from scientist Mike Bullivant. Nick applies his skills to some horse medicine as Ruth and Tom venture into the uncertain world of Victorian electrotherapy. Show less