D.J. inherits $500 in his great aunt Harriet's will (because he was the only member of the family she never met) and blows half of it on a trombone to impress a girl who plays tuba in the school band. Meanwhile, Darlene alienates everyone by mentioning that she has turned down a $500/week job in advertising, an entry level position that would pay her more than both her parents earn.
Frasier realizes the true depth of his feelings for Kate, only to find out that she's moving to Chicago the next day. The night culminates with the two having a long discussion in the airport lounge, finding out more about each other than they ever wanted to know.