Thursday 21 November 1974 was a normal night in Birmingham city centre until two city-centre pub bombs were detonated.

We hear the story of the night from those who were there and the families of some of the 21 people killed.

Exploring the impact of two Birmingham pub bombs in a 50 year evolving story that's affected countless people.

The series looks into who bombed Birmingham and asks why no one has been rightfully brought to justice. It also positions the bombings in the wider context of the Troubles in Northern Ireland and the Good Friday Agreement.

On a journey from the streets of 1970s Birmingham to modern day Belfast and Dublin, we hear from family members of victims, the Birmingham Six, their families and the city at large.

The series also features one of the men accused of the bombings.