Watch Fifty Dead Men Walking (2008) Official Trailer

When you cross the line there's no going back.

It's 1989, and in a Belfast torn apart by conflict and terrorism, petty criminal Marty McGartland is recruited by the British police to infiltrate the IRA. Guided by Special Forces officer 'Fergus', McGartland gains unparalleled insight into the organisation's dealings, providing his British handler with priceless, life-saving information. Based on a true story.