Synopsis by Hans J. Wollstein
Secret Agent X-9 (Scott Kolk) and his colleague Tommy Dawson (Henry Hunter) smartly use the runaway truck as their getaway vehicle. Back at headquarters, however, X-9 discovers that the all-important receipt containing the whereabouts of the Belgravian crown jewels is missing. X-9 accuses Baron Karsten (Monte Blue) of stealing the slip of paper, but their tête-à-tête is interrupted by Blackstone (Henry Brandon), who addresses the baron as if he were the mysterious gang leader Victor Brenda. Before leaving with Blackstone, Karsten secretly indicates to Shara Graustark (Jean Rogers) that the receipt is hidden in a bookcase, but when Agent X-9 searches the place, he finds it booby trapped by the baron. A shot rings out and X-9 appears to have been hit.