After graduating from Montclair State, New Jersey Girl Annie Braddock (Scarlett Johansson) can't make up her mind about what to do with her life. After saving a little boy from being run over in the park, she is quickly employed as a nanny for a rich Upper East Side couple. Mr X is occupied with his business, Mrs X loves shopping and none of them really likes to spend time with their little boy Grayer (Nicholas Reese Art). Annie quickly learns that she has more than her hands full with taking care of him. Her busy schedule doesn't give her much spare time. Mrs X fired her last nanny because she was dating and that gives Annie problems when Harvard Hottie (Chris Evans) who lives in the same building asks her out on a date.
