In Episode 3 of the Periodic Fable, Hallam goes into detail about his journey to becoming a Chemist, the route he took, the life lessons he's learnt on the way, and the work he's spent the last 10 years doing in the vital field of polymers and plastic production  Cameron then takes us on another True Periodic Fable, diving into the world of Arrhenius before Hallam  looks at what's in the news in the world of science and chemistry.