Charlie never graduated school due to a missed Spanish final exam, and Caitlin does more harm than good in trying to help. Randall installs a water cooler. Stuart is jealous of Carter's friendship with Caitlin and uses Rags to get even.

An abrasive blind man finds Caitlin dull, spurns her, and causes her to try to improve her personality. In need of a religion refresher, Randall and Charlie accidentally wreak havoc on Claudia's religious education class and her future.