The investigative journalist continues to explore the world of youth crime, as he visits Dublin's north inner-city. Here, he examines the causes and the ripple effect on the wider community, as well as looking at what drives young people to choose a bad path. He meets those at the heart of the issue, including offenders, reformed criminals, the families and communities, and individuals making a difference.

Donal MacIntyre travels to Cork, where increasing levels of heroin use are weakening the city's prevailing sense of community and fortitude against crime.