Susan Merson

Derek looks for the perfect way to propose to Meredith; Lexie wants Mark to go public with their relationship; Bailey considers taking her medical career in a new direction.

Derek and Addison face off as they try to save a pregnant patient's life; a surgeon botches a standard procedure; Bailey is shocked by the chief's recommendation letter.

After a man posing as him dies, Frasier reads his own obituary and regrets the decisions in his life.

Charlie is trying to determine where a dirty bomb strike would have the most impact, when a truck carrying atomic waste is hijacked by thieves who threaten to unleash a bomb if a multi-million-dollar ransom is not paid.

Grissom and the team battle the flu while investigating the deaths of several key witnesses in a grand jury case involving a dangerous Las Vegas gang.

Since the negotiations with the Fisher were not successful, Mitzi Huntley, regional director of Kroehner, decides to take care of the subject.