The gang all prepare for the Manny High Prom. Chris prepares to give a ring to Cassidy for this special occasion and to highlight their relationship. He also wants her to visit him at Duke University from Cal Art. Cassidy and Dawn misinterpret his message about the ring as a marriage proposal and the Duke brochures as Chris wanting Cassidy to go with him to Duke. Meanwhile, Al asks Dawn to the prom and she accepts. At the prom, the two fondly reflect on the memories of their time together when they were dating. Ms. Noble worries that by Billy being away, this will be another prom that she will have to attend alone. Also, Jamal and El-Train want to set up something special for Rosie and Kianna before they go to the special dance, but things don't seem to go right.