Sydney Wood is the son of a widowed earl, and pretty lonely. His father is a busy diplomat, his mother is dead, and his governess won't let him play outside the castle. It's a tough life, as I'm sure you'll agree, so he plays with his huge dogs and reads about the valiant deeds of his noble ancestors. When his father brings some German diplomats around, who secretly take pictures of the undefended coastline and insult him, he retaliates by knocking off their hats as they leave with a slingshot. Some cadets from the local school spot him doing this and befriend him, so he wheedles his father into letting him join the local school, where he naturally excels. When war is declared and the Germans sneakily invade the area where his cadets are patrolling....
This one is obviously meant for the kiddie matinee, and is just the sort of stuff that that would fill the pages of lesser magazines, especially now that P.G. Wodehouse had given up writing about the tribulations of playing cricket at public schools for the goings-on of the members of the Drones Club. It's short, patriotic, utterly normative and has a cameo by the Prince of Wales. Hip Hip Hooraw.