Left behind by his brothers on their fishing trip, Buddy is disconsolate until he sees Lilly, a stylish young lady from the city, who is visiting Mrs. Boyd, their next-door neighbor. He awkwardly makes her acquaintance, and it proves to be a case of love at first sight on his part. She is older than he and although secretly amused, is gracious to Buddy and he acquires such a swelled head that he passes haughtily by his old friends, Grace and Elsa Forster. Buddy invites Lilly to the Strawberry Festival and she consents to go with him. She meets his older brother, Arthur, they are mutually attracted and Buddy is made to feel that he is a "Third Party." To prevent Buddy from taking Lilly to the Festival, Arthur, on the night of the affair, hides his brother's long-trouser suit and the poor boy is obliged to go in short pants. Lilly spies his abbreviated trousers and, smothering a laugh, trips off on Arthur's arm. Buddy accuses Arthur of playing a trick on him and after a strenuous argument which nearly breaks up the Festival, Buddy goes home sobbing with grief and shame. The following day Arthur, after a severe scolding from Mother, returns Buddy's suit. Buddy dons his man's clothes, and later meets Elsa and Grace. They are about to pass him by when Buddy stops them and apologizes for his previous rudeness. All are soon the best of friends again and when Arthur goes by with Lilly, Buddy merely smiles in a superior manner, showing that he has entirely recovered from his "downfall."