Mystery of the Rocket Man

Rocket Man dives out of the plane with Glenda before it crashes. Dr. Vulcan now assumes that Jeff and the Rocket Man are one and the same and sets up a plan to prove it, stealing the newly devised Sonutron at the same time. At the conference, Jeff is put in charge of transporting the Sonutron and as he sets out on this mission he is captured by Dirken. Through a ruse, Jeff contacts Millard while enroute to Electronics Corporation. Dirken is about to consumate Vulcan's plan when Rocket Man suddenly appears. In the action that follows his surprissing arrival, Jeff makes an attempt to get away with the truck on which the Sonutron is loaded. A chance bullet knocks him cold and the truck crashes through the wall of the warehouse and off the pier into the water.