I'm sure everybody remembers how the CMC were harshly shunned by the whole town to such an extent that it took a heartfelt apology letter to earn their forgiveness. This story is gonna show would might have happened during the entire "apology letter" sequence, which not only has the CMC's friends and family members apologizing for how harsh their reactions were upon finding out that they were Gabby Gums, but also for their hypocrisy which was never fully addressed in the episode.