This documentary looks at the sectarian conflict in the northern Lebanese city of Tripoli. It paints a chaotic, terrifying and often spectacular picture of what it looks like when two rundown neighbourhoods – one Sunni Muslim, one Alawite – go to war. But how do these clashes work? Although the two neighbourhoods back different sides in the Syrian Civil War and the timing of the fights often reflect wider political tensions in Lebanon, it’s usually distinctly local – even trivial – issues that spark their gun-battles. And both sides also always blame the other for starting the fights. The fate of these two districts lies in the hands of local strongmen, gun-fighters – killers. Some would say the stability of Tripoli – and even Lebanon itself – now hangs in the balance. The gun battles have got worse and worse. This film made for the BBC shows that the fear is that they could be a taste of things to come on a much larger scale.