Regular Sized Rudy, a low ranking hall monitor, admires Tina for her stringent adherence to the rules, even writing up Gene and Louise for horsing around.
Upon entering school however, they are intercepted by Rudy, who alerts Mr. Frond, who cancels Tina's promotion and takes Zeke to the principal's office.
Disgraced, Tina goes to the administrative office and overhears a phone conversation from Zeke's grandmother asking if he will visit her at the retirement home.
He wagers her that if Zeke's story turns out to be fake, Tina will be punished with one month's detention and stripped of her hall monitor privileges.
Tina states that if she wins, she only wants that Zeke's suspension be overturned, though Frond also sarcastically adds that he will also buy everyone ice cream.
With no other options, he swallows his pride and reluctantly asks the elderly Edith Cranwinkle and her husband Harold, the antagonistic owners of the local art store Reflections, for drawing lessons.
Edith begrudgingly accepts him as a student and gives him a crash course that involves him buying art supplies and finally drawing her naked form.
Bob triumphantly returns with his drawing of nude Edith, and Linda and the kids celebrate his newfound skill by hanging the picture up on the wall.
However, Wilkins found the episode enjoyable, stating, "'Midday Run' is such a rollicking good time that it almost doesn't matter how much of a mess it is.