Letitia hits a young, pretty bicyclist with her car. To avoid another public scandal, Tripp invites Wrenn to recuperate at the Darling mansion, where she charms a few, but makes others suspicious. The claws come out during a catty showdown between Lisa and Karen over Nick. Meanwhile, fired prosecutor Nola Lyons delights Patrick with her aggressive ways as his new Chief of Staff, but Tripp and the spurned Jeremy are less than pleased by her presence; and, much to Brian's surprise, Andrea refuses to fight her cancer by entering a medical trial.