The documentary will show never-before-seen footage from inside the Regency Hotel, where a shooting took place in 2016.
A documentary following the ongoing gangland violence in Ireland will air on Wednesday night.
Inside Ireland’s Gangland: The Next Generation airs on Virgin Media One at 10pm and will detail the extent of the Kinahan-Hutch feud.
The show will include never-before-seen footage from inside the Regency Hotel on the day of the infamous shooting of Davy Byrne on 5 February 2016, as well as interviews with senior Gardaí and clergy.
Viewers will also see one heartbroken woman tell the story of losing her son and brother-in-law to gangland violence.
In the documentary, Jean O'Connor speaks about the death of her son Eoin, as well as her brother-in-law Noel Kirwan, saying: "Noel Kirwan was my brother-in-law and was a great help to me when Eoin went missing and was murdered.
"I relied on him. He was such a good friend to me, apart from being my brother-in-law. He wasn't involved in any criminal gang. Murdered because someone said he was to be murdered."
Speaking about the death of her son, O'Connor said: "They had a good idea that it was them, they spoke to my sons. It turned out it was them - left, discarded... who does that? They're not human beings that do that. Just discarded, they meant nothing to them."
