High action story of Chicago firemen has some of the most stupendous incendiary special effects ever filmed. But then there's that plot, B-movie hokum about a mystery arsonist torching strategic parts of the community with the finesse of an expert and a brother-against-brother conflict. Straight-forward performances from most of the cast in spite of the weak storyline. Writer Widen wrote from experience--he used to be a fireman; real-life Chicago firefighters were reportedly very happy with the realistic and intense fire scenes. Forget the plot and just watch the fires. Also available in a letterboxed version.