Andi and her friends and family gather to celebrate the Harvest Moon Festival, but Jonah's mishap may spoil the evening; Celia attempts to one-up her sister, Mei, by announcing a special event; Andi and Jonah have a heart-to-heart talk about their relationship.
It's the day of the Moon Festival. Celia is hosting a huge feast to celebrate not only the festival but also the Bex and Bowie's engagement. The girls are disappointed to learn that CeCe also invited her sister, Aunt Mei. They know it's going to be a disaster like Chinese New Year festival as Aunt Mei and CeCe turn into a contest trying to one-up each other. Their fears are confirmed when Aunt Mei and her daughter Ling arrive, announcing that Ling is pregnant with twins. How can CeCe's news top that? The tension begins.
Andi has invited her friends - Buffy, Cyrus and Jonah. Jonah is the first to arrive. This time, he is careful to make sure he's properly dressed for the festival to avoid the awkwardness of Chinese New Year. Andi doesn't have time to explain things to him because she and Bex are busy trying to moderate the arguments between CeCe and Aunt Mei. So, Jonah starts snooping around trying to figure out things by himself. He picks up a red-wax candle, which causes him to sneeze, blowing out the candle; and some of the wax splatters on the wall.
Worried about getting CeCe mad, Jonah starts a futile effort of cleaning the red wax from the wall. He tries scraping it off but he ends up scraping part of the wall painting. He tries a few other different things but the wax stain gets worse and larger. Luckily, Buffy and Cyrus arrive and he asks them for help. They try to help but the stain gets even worse. They come up with a "brilliant" idea to cover it up with toothpaste. So, Cyrus goes to ask Andi for toothbrush to fix the wax situation but Andi is in her own "situation" dealing with CeCe and Aunt Mei. Nevertheless, she gets up to give them a toothbrush to paint over the stain. Ham catches Buffy and Cyrus trying to fix the wall. After hearing their side, he offers to fix it himself before CeCe finds it.
Meanwhile, Aunt Mei asks Bex about how she's planning her wedding. Humble Bex makes it clear that she just wants a simple, quick town hall wedding but CeCe is not okay with it. CeCe wants a big expensive wedding to one-up Ling's wedding. This draws tension between CeCe and Bex, leading to more drama. As the tension rises, Aunt Mei and Ling decide to leave early. On their way out, Ham avenges CeCe by tricking Mei and Ling into to taking a picture while standing by the wet paint. Aunt Mei and Ling leave with their clothes covered in wet paint.
Afterwards, they all go outside to for the final ritual of the moon festival. They write their wishes on pieces of paper and attach them to lanterns, before letting them fly up to the moon. One of the wishes detaches and falls down next to Andi. She reads it and she is shocked.
- Peyton Elizabeth Lee as Andi Mack
- Joshua Rush as Cyrus Goodman
- Sofia Wylie as Buffy Driscoll
- Asher Angel as Jonah Beck
- Trent Garrett as Bowie Quinn
- Lilan Bowden as Bex Mack
- Lauren Tom as Celia Mack
- Nicole Bilderback as Ling
- Celia mentions The Joy Luck Club, the 1993 film (based on the Amy Tan novel of the same name), which centered on a group of Chinese-American mothers and daughters, in which Lauren Tom co-starred.
- As Bex claims Mei is "the rest of the family", apparently Ham has no living relatives.
| To view the Howling at the Moon Festival gallery, click here.