Dennis opens with a song, Gal in Galviston.
In the Anderson home, Mr and Mrs Anderson are getting ready for their college reunion. Mildred talks with Dennis about the situation and dark secret behind Mrs Anderson’s education. She was expelled on the last day of school, and she never graduated, and the alumni organization has barrred her from future reunions. It involves smoking, a big taboo for women in the early times of the 20th century. Bad, bad Mrs Anderson!
She’s sensitive about smoking to this day, and Dennis inadvertently drops smoking related words in the conversation, which of course causess her much annoyance.
Wanting some help of his own, Mr Anderson asks Dennis to attend as his son so he can go to the father and son banquet. Dennis also does what damage he can to try to help Mrs Anderson with her past school record.
Cut to a scene with Frank Nelson as a schoolofficial, and Dennis is mistaken for a student who is to take an IQ test. The questions are answered all wrong, but Frank finds Dennis fascinating. Frank is clear that Dennis isn’t a student,so has him run anerrand. When Dennis takes the anser key to the department head, Gale Gordon, he mistakenly thinks Dennis is a student, and a genius for getting all the answers correct.
Dennis sings, Senorita.
Mrs Anderson is still grieving over her long ago dark marks. Will the dean listen to her? Will he listen to Dennis? Things go well for as long as the dean keeps believing Denis is a genius. But luck won’t hold out.
Dennis closes with a song, Bouquet of Roses.