Making use of 'Kilroy," World War II's famous G. I. who was everywhere and left his signature to prove it, this entry in RKO's "This is America" series accompanies "Mr. and Mrs. Kilroy" as they visit the scenes of many battles five years after the war ended; Omaha Beach, Saint Lo, Bartonge, Remagen Bridge and the liberation of Paris from the Nazis. The film uses archive footage from 1944 and current (1949) footage as a before-and-after contrast.