A full year before the debut of Warner Bros.' TV series The FBI, a pilot of sorts was filmed under the title FBI Code 98. Jack Kelly heads the cast of this Dragnet-style docudrama, wherein the action is underlined by William Woodson's stentorian off-camera narration. The main plot concerns a disgruntled mad bomber, who uses his heightened knowledge of electronics to stay one step ahead of detection. The all-Warner-contractee cast includes Maverick's Kelly, Ray Danton, Andrew Duggan, Philip Carey, William Reynolds (later a regular on The FBI), Peggy McCay and Merry Anders. Originally intended as a TV special, FBI Code 98 was released theatrically instead. The film was produced by Stanley Niss, the author of the book on which the screenplay was based.