Episode 1 looks at the rise over the last decade in cases of assault involving a single punch that prove deadly.
Examining the growing phenomenon in youth crime of unnecessary, unprovoked and inappropriate violence committed for the thrill and entertainment of it. The programme looks at cases including the murder of 22-year-old musician Gavin O'Connor, the serious assault with a shotgun of Garda Sgt Mark Clarke, and the aggravated burglary of a woman's home in Dublin