The film is focused on and celebrating the radical changes in postwar Britain under the Labour government of Clement Attlee, which came to power in 1945. Relying primarily on archive footage and interviews, and without a narrative voiceover, the documentary recounts the endemic poverty in prewar Britain, the sense of optimism that followed victory in World War II and the subsequent expansion of the welfare state, founding of the National Health Service and nationalisation of significant parts of the UK's economy.
The film documents the extent to which these achievements, as the filmmaker Ken Loach sees them, have since been subject to attack in the decades that followed, particularly under the Conservative governments of Margaret Thatcher in the 1980s

This illuminating ten-part series tells the story of World War ll through the ten most pivotal turning points in the conflict. Gripping story-telling illustrated with exquisitely restored and colourised archived films and supported by a global cast of stellar historians bring this crucially important era in history to life.
In the first chapter, Britain and France declare war when Hitler invades Poland. In May 1940 the Germans attack Holland and Belgium as a decoy. As the Wehrmacht comes through the Ardennes and the Luftwaffe strikes in force, French leaders are caught like rabbits in headlights. The Germans are on a drug called Pervitin, which beats off fatigue, and reach the Atlantic coast. There is a danger that the Germans will encircle the Allies and cut them off from the sea. But Hitler issues his Halt Order and some 340,000 Allies are evacuated.

In 1940, France has fallen and Hitler orders Operation Sealion, the invasion of Great Britain. But first the Luftwaffe must defeat the RAF for seaborne landings to succeed. In July 1940 an epic struggle in the skies above England begins. Only a brilliant defensive system and the bravery of young pilots stand in the Luftwaffe’s way. Wave after wave of German bombers are attacked by British planes. Featuring the last interview with the youngest Spitfire-pilot in the battle, Geoffrey Wellum.