Tracked by Wireless

A wireless engineer detects a recurring, enigmatic signal each evening and, with the support of his scientist father and a surprise foreign visitor, investigates its source through technical experiments and careful direction-finding. The plot threads together episodes of mystery and danger—strange messages, cryptic physical clues, clandestine factories and sinister figures—while showcasing contemporary radio technology and detection methods. The narrative moves from laboratory sleuthing to tense confrontations and revelations at remote locations, as the investigator pieces together an organized scheme of sabotage and intrigue behind the repeated signal.