Italy has a reputation for football violence, in part due to the Ultras culture. Dyer firstly travels to Turin, and meets the Drughi Ultras from Juventus. The Drughi are named after the Droogs in the cult film A Clockwork Orange. Dyer speaks with members of the Drughi about the Heysel Stadium disaster in 1985, and is told of Juventus fans hatred of all English football fans.

In the first episode, Dyer goes to Turkey, one of the more notorious countries for football violence, due to the passion of their supporters. The episode is shot mainly in Istanbul, where the countries two biggest clubs and fierce rivals are Fenerbahçe and Galatasaray. Dyer meets two members of Fenerbahçe's firm, KFY (Kill For You) and learns of one of their supporters, nicknamed Rambo, who once broke into Galatasaray's Ali Sami Yen Stadium with a Fenerbahçe flag and a kebab knife. He then meets Alpaslan, the leader of Galatasarays UltrAslan Ultras group. Dyer speaks with them about their hatred of Fenerbahçe; and also their hatred of English fans, which had been exposed in 2000 when two Leeds United fans were fatally stabbed in Istanbul at a UEFA Cup semi-final match against Galatasaray.

Brazil is considered to be one of the most violent societies in the world; a society with a high murder rate. Brazilian football is rife with passion and brutality. In Rio de Janeiro Dyer visits the Raça Rubro Negra, a Torcida group from Flamengo. He learns that in Brazil the firms are waging war, with guns and shootings commonplace. In Porto Alegre he meets one more torcida group, Geral do Grêmio of Grêmio, and he attends a game between the team and Flamengo.

The Dutch are famous for their tolerant culture and liberal attitude to sex and drugs. Dyer begins his journey in Amsterdam, where he takes in the cosmopolitan life of the capital. He learns about Ajax’s long-standing rivalry with Feyenoord hooligans from Rotterdam. He then travels to Rotterdam, where he experiences De Klassieker (The Classic) derby, Feyenoord against Ajax – the biggest game in Holland. We see how drugs and weapons have fueled their rivalries, which have seen the firms battle around the football ground and even at clubs and raves.

In Russia, Dyer visits Moscow and Saint Petersburg. Whilst in Moscow it quickly becomes apparent that it is a city which is out of the ordinary. Moscow has its own rules, and beneath its exterior it becomes apparent that anything goes. He meets Vasilli the Killer the leader of Spartak Moscow's Gladiators firm.

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In his trip to the Balkans, Dyer visits both Croatia and Serbia who fought one of the bloodiest wars in recent European history. A war which some believe began with the riot between fans of (Croatian club) Dinamo Zagreb and (Serbian club) Red Star Belgrade in May 1990. In Croatia he attends the biggest derby in their footballing calendar, Hajduk Split vs Dinamo Zagreb in Split.

During this film Dyer visits Poland, a country which has been saddled with the yoke of oppression throughout its history. At the beginning of his journey, he heads to Gdańsk where he meets Lechia's supporters Chuligani Wolnego Miasta - a firm that helped to abolish the communist regime. He then travels on to Kraków to sample the The Holy War (pol. Święta Wojna) - the Kraków derby between Cracovia and Wisła. First he meets one of Cracovia hooligans groups - Anty Wisła, later he meets Sharks (main of Wisła's hooligans firm). On October 28, 2006, Danny experienced what The Holy War really is.

In Argentina, Dyer travels mainly around the capital city, Buenos Aires, meeting firms from all across the city and province. Buenos Aires has the most football clubs in one city in the world. Rivalry and violence between fans is never far away. First is the Avellaneda derby (Club Atlético Independiente vs Racing Club de Avellaneda), in the port town of Avellaneda in the Greater Buenos Aires (belonging to the Buenos Aires Province). This match was played in the stadium of Independiente (Libertadores de América). Dyer is taken to the popular of the stadium, a stand said to be so crazy, that even the police will allegedly not enter it. Before the game, Dyer spoke with Pablo "Bebote" (Big baby) Álvarez, the leader of the Los Diablos Rojos (The Red Devils), the barra brava of Independiente; and entered to the stadium with him.