The F.B.I. is a classic American crime drama series that aired on ABC from 1965 to 1974. Produced by Quinn Martin in close cooperation with the real Federal Bureau of Investigation and its director, J. Edgar Hoover, the show focused on the professional lives of special agents as they tackled a wide array of criminal activities, ranging from organized crime and espionage to kidnapping and bank robbery. Each episode was presented as a case file, emphasizing the procedural aspects of federal law enforcement and the meticulous nature of investigative work. The series centers on Inspector Lewis Erskine, a dedicated and stoic agent who serves as the moral compass of the Bureau. Throughout its nine-season run, the show balanced high-stakes action with a grounded, realistic portrayal of the FBI's methodology. By incorporating real-life Bureau techniques and often ending with a public service announcement featuring the 'Ten Most Wanted Fugitives,' the series became a cultural touchstone for procedural television, blending entertainment with a distinct sense of institutional authority.