In the days before Sarah's 21st birthday, the word "difficult" defines Sarah's new charge as an au pair to Ashley, and her rebellious teenage daughter Flynn, as well as dealing with Spence himself, who's still angry at Sarah since their failed time out, as well as his new girlfriend, a not-so-bright model named Leya. Meanwhile, Andy Beam, the smitten orthodontist whom Cecilia met during the Sarah and Romy's party months earlier, hires her as his new receptionist where she's liked by him, but not the patients. Also, Maguire and J.B. decide to go into the party-DJ business which turns into a competition for both of them when they both fall for Sophie, their party coordinator.
—Anonymous