Annie quits her job at the private school without discussing it with Eric first, and he feels completely left out. Also, Mary tries to call Wilson and learns from his landlord that he has moved out of his apartment. Meanwhile, Simon uses Robbie's car to practice driving and he accidentally gets him in trouble when Simon smashes into Matt's car. Robbie's brother, Ronald, stops by at the Camden home for a visit. Mary also gets an unexpected visitor--Ben, the fireman she kissed, who drops by unannounced for dinner. Lastly, Ruthie's old nemesis teacher Ms. Riddle returns when she starts working at Ruthie's school.