Kemp and his camera crew, there with the riot police, decide to creep down the alley to get a closer look at the action.

They quickly realise this is not a particularly good idea, as the fans are throwing bottles at each other, and retreat briskly, whereupon Kemp starts admonishing himself for being so stupid as to walk straight into the firing line.

While he's busy berating himself for doing something so dangerous, the camera shifts off him and back to the alleyway where we see an elderly woman shuffling down it. To dump out some rubbish. Sadly this perfect visual gag is ruined slightly when Kemp notices her and reasons, "Oh, she must be used to this sort of thing."

That scene summed up the whole programme, which was dealing with a very serious problem but for some reason was difficult to take seriously. It'd be interesting to see how other stations would have made this documentary.

The BBC would probably have ended up with something that had a broader world view, pondering the worrying rise of Nazism in Europe or dwelling on how countries with poor economies tend to drift towards right-wing politics. RTE might have sent their Primetime team and ended up with something similarly worthy, or perhaps they'd have sent Hector. "Ta na daoine seo as a mheabhair, ach is brea liom buideil a chaitheamh.

Wahay!"

Sky though give us Ross Kemp, the former EastEnders actor who keeps throwing the documentary feel out of whack by appearing as if he's acting. We could take the whole thing a lot more seriously if we thought he wasn't trying to impress us with his hard-man facade.

Pretty much every good aspect of the programme was counter-balanced by Kemp's posturing giving us an unintended laugh.

Going hand-in-hand with that is the problem that his voiceovers were so portentous they ended up just sounding comical ("I'm going to put my neck [massive dramatic pause] on the line").

Which is a bit of a shame, as some of Kemp's encounters were intriguing, and also quite depressing. He meets up with the Python twins, who it's probably fair to assume didn't get their name cause they were big fans of British surrealist comedy. Two hulking neo-Nazi skinheads, they were eager to share their philosophy of life. "If I see a black person, I don't want them walking down my street. They stick their noses into everything."

Jews? "There weren't enough concentration camps." And why do they practice violence in the name of soccer? "We like the adrenaline. It's our hobby."

One of the twins had a child and girlfriend, who expressed her worry that he'd end up in prison and she'd be left to raise their child alone, but throughout this heartfelt admission the lumbering great ox just stood emotionless at her side, impervious to the reasoning of any and all right-minded people.

Kemp then attended a game with the twins, but the policing at the small stadium was sufficient to keep the fans apart.

Not to worry though, leaders of each gang of 'supporters' just trade phone numbers and they meet at a secret spot to knock lumps out of each other later. Kemp was impressed by the fact that weapons weren't allowed at these fights, hand-to-hand fighting clearly indicating a better class of thug.

The Wisla fans though have no such compunction about carrying weapons, waging a constant war against Cracovia fans that goes far beyond the confines of a match day, and you had to admire Kemp's bravery in managing to secure a private meeting with some of the balaclava-clad gang at a secluded spot.

Needless to say there was no posturing in this situation (although the cameraman was unnecessarily brave, staying filming at one point after being warned to put the camera down - at least we know what Phil Mitchell is doing these days).

The interview though went just about as well as you'd expect, being both depressing and disquieting. When they were asked what they got up to at a match they just sneered, "Nothing. We're just watching the game. Stupid question.

Don't expect us to say we're going to kill someone during a match."

And why there is such animosity between themselves and Cracovia?

"That's how it is and always will be."