Katie's father, already displeased that his eldest daughter Colleen is earning a living as a Rockette (his dream was for her to become a nun), refuses to give her permission to marry her boyfriend Charlie, saying that they are both too young and that Charlie has no job. Nevertheless, Colleen and Charlie elope, and Lt. Monahan refuses to speak to her since she is not married in the eyes of God. Also: The Silvers finally get a telephone.

Guilt is in the air in Brooklyn: Katie prays to be spared from her history exam, then is devastated when her teacher, the tough Sister Rafael, dies--guilty to the point where she blames Alan and eventually vows to become a nun. In the meantime, both Grandma and Nathaniel make the Silvers feel guilty about shopping at Fairmart, the supermarket that gives trading stamps, rather than at the neighborhood grocery.

After Glee Club practice, Alan is collared by Jimmy Vinceguera, a Lafayette High School hood who overheard him singing--apparently Bruno Mazzarelli, the lead singer in his rock group, the V-Necks, was arrested, and he wants Alan to act as substitute in a radio contest. But, as Alan practices, he is caught up in the "excitement" of being rebellious, and drawn into the boys' objectionable behavior as well as into their music. In the meantime, Nicholas tells Nathaniel they have to give up playing cowboy if they want to "become" teenagers, but Grandpa nips that in the bud by agreeing to play with them.