Major Thorpe (writer and artist), Mort Leav (pencils and inks)
Published in Jumbo Comics #68, Oct 1944 - 7 pagesCount Van Blonker is a German scientist with a new invention the Nazis want. He is more interested in the French beauty Fifi. ZX-5 uses that to eliminate him to take his place and get the plans himself.
Here are the pages I have of it.