He asks a nurse about the name 'Nightingale' and learns about Florence Nightingale and her achievements. Sammy: I don't know, Krish. A Nightingale is a type of bird, so maybe it's named after that.

Krish and Sammy find out about the history of nursing, including Florence Nightingale, Mary Seacole, Edith Cavell and Koforowola Abeni Pratt - the first black nurse to work for the NHS.