MemorialDay,1993.When13-year-oldKyleVogeldiscoverstheWorldWarIIfootlockerbelongingtohisgrandfather,Bud,everyonetellsKyletoputitback.Luckily,heignoresthem.AlthoughBudhasnevertalkedaboutthewar,hefindshimselfstrikingadealwithhisgrandson:Kylecanpickanythreesouvenirs,andBudwilltellhimthestoriesbehindeachone.MemorialDaynotonlytakesusonajourneyintoBud'scomplicatedwartimepast,butalsointoKyle'swartimefuture.Asthetwomenshareparallelexperiencesincombat,theycometorealizehowthatmagicaldayontheporchshapedbothoftheirlives.