Guns Don't Argue

It was, just as it says at the top of the page, several episodes of the syndicated TV series, GANGBUSTERS, stitched together to make a feature-length film for the drive-in and grind-show theatres, and the producers were only interested in getting some more return on their investment...and didn't much care if some theatre patron came away miffed because he had already seen this mess for free on television, scattered across several 30-minute episodes. Each of those told a single story of some gangster or gangs, through some law-enforcement agent, and sometimes had different narrators telling the story.

Based on Philip H. Lord's radio program, and the comic strip of the same name. This is not one of the FBI-endorsed films or, to be exact, television series.