Hannah once again takes us on a deep dive to uncover the unbelievable, and sometimes hilarious, stories behind modern day technology. Taking apart a different piece of technology in each episode, with exclusive access to major technology companies like Samsung and Dyson and speaking to some of the world's leading innovators, the second series of The Secret Genius of Modern Life sees Hannah uncover:

How catching a French 19th century serial killer helped shape the modern-day passport control.
The key component in vacuum cleaners developed for a secret atomic bomb lab.
How a Mormon preacher's sermon was crucial to the development of today's headphones.
How South Korean sausages shed new light on the inner workings of our smartphones.