In the animation Mother Land, the Yates, a nomadic tribe of Tundra, adhere to the traditional lifestyle despite the conciliatory and coercion of development. A little girl, Krisha| her younger brother, Kolya| and her mother and father live happily in the traditional way. However, one day, while her mother is ill and her father goes to the city to get medicine, Krisha and Kolya ...。坐落于茫茫大海中央的南大东岛,当地的孩子们要想继续高中学业只有乘船前往三百公里外的冲绳本岛。没到15岁的夏天,岛民们便为民谣组合博罗蒂诺女孩的适龄姑娘们举行告别仪式,而女孩们也将唱响那首感人肺腑的《再见》,对生养了他们的父母致以深深的谢意。送走了前辈,博罗蒂诺女孩的优奈(三吉彩花 饰)也迎来了她在岛上的最后一年。她的哥哥姐姐之前相继离岛,母亲(大竹忍 饰)也为了照顾他们的起居前往本岛。留在当地的父亲(小林薰 饰)和优奈相依为命,优奈隐隐感受到父母之间的不安。她挂念孤独的父亲,也为青涩的恋情踌躇。
前路漫漫,唯有悠扬的旋律伴她同行……。一群5个十几岁的朋友在一个偏僻的度假胜地重聚。当他们意识到一个杀手潜伏在附近时,他们的聚会变得黑暗。。