John and his class go on a school trip to the Tower of London. While he is there he loses his pet mouse and vows to return and find her later. Back in school, he is not very attentive and falls asleep during a lesson about electricity so his teacher sends him home. On the 'tube' there is a sudden flash, and John, the train and all of the passengers turn yellow. With the help of Nick (short for 'Electronic') John learns about electricity, invades the Tower of London and saves his pet mouse ... or was it a dream. This is the Powell & Pressburger touch applied to children's films 　　译文(2): 约翰和他的班级去参加学校组织的去伦敦塔的旅行。当他在那里，他失去了他的宠物老鼠和誓言返回，并找到她以后。回到学校，他注意力不是很集中，在上电学课的时候睡着了，所以他的老师把他送回了家。地铁上突然一阵闪光，约翰、火车和所有的乘客都变成了黄色。在尼克(“电子”的简称)的帮助下，约翰学会了电，入侵了伦敦塔，拯救了他的宠物老鼠... ... 或者这只是一个梦。这是鲍威尔 & 普雷斯堡触摸适用于儿童电影