Willy Houlihan is in the holding cells beneath a Crown Court, awaiting the verdict of his trial. As he begins the long walk back up to his courtroom, viewers learn the events that brought him there. Willy was a hard-working plumber, with money pressures and a family who rely on him. But what did he get involved in?

Frankie, a young soldier on trial, starts the long walk back up to his courtroom to learn the decision of the jury. A frightening series of events led him to this place, but does the jury know the full story?

Helen (Juliet Stevenson) and Frank (Peter Capaldi) send their son Rob off to his first day as a temp at a local factory. When Rob doesn't return home, Helen sets out to find justice for her son.

Liam (Andy Serkis) is a taxi driver who is bored very everyday life and is desperate to escape it. One day Emma gets into his cab and he falls deeply and madly in love with her, he starts to dream that he can be everything she needs in life.

Alison, a working mother with a young family, stands accused. Will the jury find her guilty?

Seventeen-year-old Stephen Cartwright stands charged with a serious offence as his anxious father Peter looks on. We see the family months earlier as Peter tries his best to help his sons, Stephen and Dom, face the imminent death of their beloved mother. When palliative care nurse Charlotte arrives, Peter is grateful of her help at this most painful and stressful time for them. Stephen is less sure of this efficient nurse assigned to see his mother through her final days. When his mum passes on, Stephen becomes more suspicious of Charlotte's motivations.

While admitting new inmate Stephen Cartwright into the young offender's institution where she works as a prison officer, Tina Dakin senses that something does not seem right. Notifying her senior officer, Tina is distracted by another emergency, but on returning to Stephen's cell she discovers that the boy has taken his life. After her attempts to resuscitate Stephen fail, Tina's troubles multiply when a series of betrayals and cover-ups result in her becoming the victim of a crime.