This time, Professor Cox celebrates Britain's pivotal role in creating modern science. From performing Isaac Newton's iconic light experiment to meeting a wartime code breaker and making hydrogen explosions, Professor Cox leads the way through 300 years of British history.

In the mid-1660s, Isaac Newton bought a pair of prisms at a fair near Cambridge, which were to be the basis of a series of experiments that would unlock a secret that had occupied scientists for centuries - the nature of light itself.