Jessie arrives in New York, where she is dumped out of her cab at the Ross's condo building. Kindly taken upstairs by Zuri, Jessie meets her adoptive parents, Morgan and Christina Ross (Charles Esten andChristina Moore). They hire her to be a nanny to Zuri, Ravi, Luke and Emma. After initially failing to win over each child, they attempt to run away. She soon makes up her mistakes to each child except Emma, who is upset that her parents can't attend her science fair. Jessie goes to the movie set where Morgan and Christina are, telling them that they need to spend more time with their kids, as their presence is important in their lives; this move gets her fired. Nevertheless, she attends Emma's science fair to support her. However, Emma's parents show up to the science fair as well, having taken Jessie's advice. Emma wins the science fair, and Jessie is rehired.
Jessie来到了纽约，被出租车扔到了Ross公寓大厦前，然后被一个叫Zuri的小女孩很善良地带回了家。在Zuri家，Jessie见到了Zuri的养父母，Morgan和Christina Ross。他们聘请了Jessie当Zuri、Ravi、Luke和Emma（Zuri兄弟姐妹）的保姆，在Jessie惹毛了孩子们后，他们企图逃离Jessie的管教，但Jessie很快又重新赢得孩子们的欢心，除了Emma，她正因为父母不能参加她的科学展而难过。于是Jessie便闯入Morgan和Christina工作的电影拍摄棚，告诉他们让他们花多点时间陪陪孩子，他们的出席对孩子们很重要。也正因为如此，Jessie被解雇了。然而，Jessie还是参加了Emma的科学展去支持她，出乎意料的是Emma的父母也来了，他们采纳了Jessie的意见。后来，Emma的科学模型赢得了比赛，Jessie也重新回到了她保姆的岗位。[3]
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