Married ... with Prom Queen (1) - S3.E16

Al and Peggy go to their high school reunion. Peggy wants to be prom queen and she spent a lot of money calling old friends and buying new clothes to gain votes. But when she thinks she has the majority of the votes, her rival Connie Bender appears and surprises Peg with the fact that Connie is now in the lead to be prom queen.