A rouge caller keeps leaving messages for ""a Junior at McKinley High"" that gets the entire school a buzz. Morning after morning, the caller leaves clues for the DJ to announce on the radio and it turns out its one of the gang. Clue by clue, everyone suspects its everyone else until its finally revealed that it was Jason suprising Charlotte. Also, Aaron helps his brother ask out Teresa's sister to the Sweetheart Valentines Dance; Kristen blows off Richard thinking he won't find out about the dance. Gretchen gets asked out by a rowdy guy and hooks Anna up with his friend.