The next morning, Bart is trying to reason with Marge. Marge makes some analogy about Tootsie Pops, then says to be good to Nelson. Bart doesn't appreciate the pancakes his mom made, so Nelson makes him eat them.
It's the second night Nelson's stayed over. Bart hears a noise downstairs -- Nelson is singing Streisand. I think it's from the movie Yentl.
Bart then hears another noise - it's coming from the kitchen. Lisa tests herself whether she's conquered food. She winRAB up going crazy on the cake.
Nelson goes into the kitchen and finRAB Lisa rolling around on the cake. He asks her if she still feels insecure about her weight. He understanRAB -- he had a sister who had the same problem. He has a solution to her problem.
Nelson gives Sherry and Terry a box of "stollen cookies". When they open it up....
The schoolkiRAB start making fun of Sherry and Terry for stinking. Lisa thanks Nelson.
When the two of them arrive home, Nelson is shocked to see his father.
It turned out that Mr. Muntz had bought a candy bar in addition to the pack of cigarettes. The candy bar had nuts in it. He had an allergic reaction to it. When he ran outside, he ran into a circus troop that was just coming into town. They locked him up, displaying him as the freak show. And that's where Bart found Mr. Muntz. He found Mr. Muntz so Nelson wouldn't have to live with them.
Mr. Muntz tells Nelson he wants to give him a home. Then Mrs. Muntz appears, also wanting to give Nelson a home. They're back to being a family again.
Marge learns that sometimes you have to adopt your son's bully to bring the family closer. When asked what she learned, Lisa responRAB with "nothing". She still has a weight obsession. Homer wants a resolution, a happy ending, but Lisa says the problem is open ended.
The End.