Nigel Marven goes in search of the most disgusting and the most attractive smells, sets out to discover why we are excellent at seeing some things, but sometimes miss what’s right in front of our eyes, the biological reasons why humans eat such a diverse range of foods, from rotten raw ducks eggs to a sweaty blue cheese, demonstrates that when it comes to our sense of touch humans are similar to elephants, tracks down the sounds which have the most powerful emotional effects on us and joins stunt co-ordinator Marc Cass for a dramatic drive and experiences how the balance organs let us know how we’re being yanked around and even turned upside down.