Amidst the anticipation of Mr. B and Aunt Penny's wedding, the Vanderbeekers' lives take an unexpected turn as Laney receives a dire diagnosis, leading them to the hospital where, despite their own challenges, they form a bond with a critically ill new friend in need of their support.

When Eugene and his pals attend the Perriwinkle's wedding, they immediately notice the wedding staff's suspicious behavior and go undercover to solve an epic Sunnyview mystery.