The Immune System Brian Cox and Robin Ince are joined by comedian Shappi Khorsandi, Prof Dan Davis and Prof Steve Jones to look at our amazingly complex and clever immune system. They look at how the human body fights disease, and why it has been so little understood until now. Fear not though, a new revolution in understanding is underway, with some extraordinary insights into the cunning of our little white cells. The panel look at how this new understanding is already leading to some real breakthroughs in treatment for diseases such as cancer, and Shappi reveals the crucial role she played in one such discovery. Producer: Alexandra Feachem.