When Liko The Bully shows up asking to see his ex-wife, Rachelle The Late Bloomer, Joe The Football Star confronts the former boxer and lets him know that he's with Rachelle now. Reluctantly, Liko gives the couple his blessing. Then, The Summer Girls decide to throw a classy invite only party. Their guest list doesn't include Cyndi The Nerd or any of The Cheerleaders, who decide to throw a party of their own and invite everyone. When Mark The Secret Admirer decides to go to the Summer Girls' party, his romance with Lori The Party Girl gets derailed. As the dueling parties spiral out of control, Eric shares a side of himself his classmates have never seen. Not to be outdone, Cyndi reveals a shocking secret of her own that floors the Class of '89.