School Days/Crossed Swords/Archie's Operation (Parts I and II)

Fred has been neglecting Donna and she decides to investigate and soon discovers Fred has been leading a secret life, not even telling Lamont what has been going on. Donna is convinced that he is seeing another woman but they soon discover Fred is really going to night school to earn his GED diploma, which he never got since he dropped out of high school to support his parents; Commodities dealer Lamont Sanford buys a porcelain figure for $15 from a silent movie star and after having it appraised, Lamont and his cantankerous father, Fred decide to take it to an auction to make even more money on it. The Sanfords attend the auction pretending to be buyers so that the price can be jacked up higher.