Major Thorpe (writer and artist), Mort Leav (pencils), Al Bryant (inks)
Published in Jumbo Comics #39, May 1942 - 8 pagesGiven orders by British Chief of Intelligence, ZX-5 is to contact a number of MI6 agents in occupied France. A woman janitor spy overhears them and passes it on so now the Gestapo is after him to get that list. They do use a clever trap to snare him.
Here are the pages I have of it.