Hinano is a bullied and lonely school girl who has no other means to express her feelings but write them down. When one day she hurries in the school nurse's room to escape, she meets a teacher ...

　　第二次世界大战期间，苏联情报机关得到了一个令人不安的消息，德国制造出了一种新的具有巨大破坏力的化学武器。纳粹法西斯想在实战中得到进一步的测试，然后再大规模的应用。苏军情报机关决定：为避免灾难的发生，同时获得可向盟国提供纳粹犯罪的证据。为了这一目的，指挥部派遣了以经验丰富的米纳埃夫大尉为首的五人小分队，在敌后实施了空降·······...