故事讲述的是一名高中女生想要在圣诞节得到自己心仪的礼物，而她的父母突然改变主意，由原先的不答应变成无条件答应甚至主动给她以前想要的东西。

　　Fitness instructor Julia is down on her luck, trying to make her baby boot camp a thriving business. To make ends meet, she becomes a part-time nanny for a single widowed father. Trouble is, she knows nothing about taking care of children.