The first episode in the series focuses on the outbreak of the Blitz in September 1940.

The first bombs used against Blitz Street, a row of terraced houses specially built on a remote military base and subjected to a frightening range of large-scale bombs and incendiaries similar to those dropped by the Luftwaffe - are the SC50 (25kg of TNT), the most common bomb dropped on the first day of bombing in London, and the SC500 bombs, which contained 250kg of TNT.

The programme features emotional eye witness testimonies, giving a fantastic insight into day-to-day life on the home front and the immense psychological damage caused by the bombardment.