A riveting look behind the scenes at the battles with the Mexican drug cartels, which plays out almost like a feature film. The filmmakers follow the stories of two characters, the Mexican doctor Jose Mireles and the American war veteran Tim Foley, who fight against the mafia, each on their side of the border. Mireles forms an armed civilian militia, which pushes the cartels out of several cities, but the situation is gradually getting out of hand. Foley's paramilitary unit tries to uncover the traditional smuggling routes, but the mafia can still find new ways. The film won the prize for best American documentary at the Sundance Film Festival and was nominated for an Oscar.