Dr. Vulcan, an evil genius sets out to conquer the world. But first, he needs to destroy the greatest organization of scientific achievements, the Science Associates. Dr. Millard (James Craven) narrowly escapes with his life and goes into hiding to save himself from Dr. Vulcan.
Dr. Millard convinces his colleague, Jeff King (Tristram Coffin), to equip himself with the most advanced personal flight suit. A rocket-propelled jetpack and a ray gun to help stop Dr. Vulcan’s evil plan.
King, with use of the inventions provided by Dr. Millard, is accompanied by the plucky magazine reporter, Glenda Thomas (Mae Clarke). The Rocket Man sets out to battle Dr. Vulcan before it’s too late!