As described in a film magazine, the film begins with a well-drawn cartoon of an early man carving his love letters on stone and the effect of getting slapped on the head with one, and of a medieval scene where Romeo brings the wrath of Juliet's father when he writes love letters to her and slips them over the balcony. Robert "Babby" Jenks (Hughes) is a department store clerk who pictures himself a hero in love with a beautiful girl. When he enlists to fight in World War I he is handicapped by his small size and consigned to the mess tent. He orders a blouse from the supply room and, as a joke by his friends, is given one a size 44 instead of his size 34. While kicking about in disgust, he finds a letter in its pocket written by a young woman in the shirt factory who asks the "big guy" who gets it to write back. Bobby enters into a correspondence with her, Anna May Jackson (Burkett) of Flatbush, Brooklyn, New York. After becoming a hero of the Battle of Argonne and with the war over, Bobby returns to New York City but dreads telling Anna the truth. Therefore, he introduces another, larger soldier (Heyes) to Anna May. She refuses the substitute and forgives the real Bobby Jenks for his deception because, anyway, "he must have been a good mess cook."