影片讲述了一群澳大利亚移民在异国他乡发现自己，共同建立新生活的故事。

　　It's summer again, and everyone's favorite Junior Rescuers, The Flounders, are back at Tower 2. With the International Junior Rescue Championships headed to Southern California, the eyes of the entire planet are on Malibu Beach. But when Team USA falls victim to a bout of food poisoning, it's up to Tyler, Dylan, Eric, Lizzie and Gina to represent their country in the world's most extreme lifeguard challenge.

怀抱梦想的年轻乡村歌手贝利（凯萨琳·麦菲饰）眼见事业和私生活变调，只好接下新工作，替一个名叫博（埃迪·希布莱恩饰）的粗犷牛仔照顾五个小孩。她这位新手褓姆凭藉迷人的南方气质和愈挫愈勇的性格，从容应对雇主家庭的种种状况，充当他们缺席已久的母亲角色。但她却万万没有想到，这个具有音乐天分的家庭竟让她重圆星梦，组成她梦寐以求的乐团。