X Marks the Spot 1942 Its 1942, rubber is a valuable commodity during WW2 Eddie Delaney is a second lieutenant in the army, but also a private detective Eddy swings into action, when his father, police sergeant Timothy J Delaney, is gunned down by rubber racketeers With the help of his brave friend and radio disc jockey Linda Ward and police lieutenant William Bill Decker, Eddy goes after the racketeers Eddie, Linda and Bill have during their search to deal with various criminals, like Marty Clark and the unscrupulous businessman and owner of the nightclub The Spot, John J Underwood