19世纪末的爱丁堡在一个极度寒冷的冬天痛苦的孕妇找到被人称作巫婆的玛德莲大夫Marie Vincent 配音不久一个孱弱的婴儿降临人间但是这个小家伙的心都冻僵了为此玛德莲帮他安装了机械心脏孩子的生母不告而别玛德莲将其作为亲生儿子抚养并起名杰克Mathias Malzieu 配音她告诫杰克不可以生气避免强烈的情绪起伏尤其要避免陷入爱恋小杰克一天天长大在他十岁的那年他首度来到镇上玩耍并和命运中的天使邂逅他的机械心脏出了故障 冒出浓烟他知道他恋爱了从这一天起杰克注定要踏上追寻爱情的征程…… 本片根据马提亚斯·马吉尔Mathias Malzieu的原著改编
The series takes place in the whimsical world of Jollywood, where Queen Delightful relies on the 7D Happy, Bashful, Sleepy, Sneezy, Dopey, Grumpy and Doc to keep the kingdom in order Standing in their way are two laughably evil villains, Grim and Hildy Gloom, who plot to take over the kingdom by stealing the magical jewels in the 7D#39;s mine With seven very distinct personalities, the 7D always manage to save the day and send Grim and Hildy running back to their evil lair to try another day