中年男子弗兰克·沃克（乔治·克鲁尼 George Clooney 饰）和身边的女孩凯茜·牛顿（布丽特·罗伯森 Britt Robertson 饰）大吐苦水，他慨叹现代社会充斥了战争、饥饿、灾难以及种种不公，他回忆起自己童年时代的一段经历。当年小小的弗兰克（托马斯•罗宾逊 Thomas Robinson 饰）带着自己的得意发明来到某主题公园，结果却碰了一鼻子灰。而美丽的少女雅典娜（拉菲•卡西迪 Raffey Cassidy 饰）偷偷伸出援手，让他见识了令人咋舌的未来世界。与之相对，凯茜则是对未来充满幻想的阳光女孩，她渴望有朝一日遨游太空。心怀梦想的她甚至私闯NASA，为此惹了不小的麻烦，不过却由此得到一枚神秘的徽章从而结识了弗兰克。
这一老一少的命运相逢，让充满幻想的未来世界不再遥远……

Back for the third installment, Frankie and Nate manage life on the vineyard and plan a wedding in secret.

In Notes of Autumn, Ellie (Williams) is a fun-loving, classically trained pianist living in the city who gave up on her passion long ago. She now works for a hotel and always seems to be getting things wrong when musical inspiration strikes. Her best friend, Leo (Macfarlane), lives in the rustic outskirts of British Columbia. He’s a famous author with writer’s block who can’t finish another installment in his highly popular book series. They both need a change of scenery as the chilly days of autumn settle in and decide to swap places, ending up completely lost in new surroundings.
Ellie gets tangled up in helping Leo’s neighbor, Sam (Rosner), put together a musical performance for a local fundraiser and comes to terms with why she quit music years ago. Meanwhile, Leo strikes up a friendship with Ellie’s good friend Matt (Porte) and opens himself up to writing something different that really inspires him. Their newfound friendships turn into something far more meaningful. As both Ellie and Leo take part in the joys of the autumn season, they also discover their hearts belong somewhere very different than they ever thought possible.

二十世纪初，爱迪生、巴黎铁塔总设计师埃菲尔、“交流电之父”尼古拉·特斯拉和其他顶尖的科学家、艺术家组成了一个秘密团体，共同打造一个理想计划——明日世界，传言中，华特·迪士尼也是创办人之一，在他的遗物中有一个黑盒子，装着神秘的机关。可是这个计划却出了意外，“明日世界”也从此消失。弗兰克（乔治·克鲁尼 George Clooney 饰）少年时曾亲眼目睹“明日世界”，但意外之后便过着半隐居的生活，直到聪明的少女凯茜（布丽特·罗伯森 Britt Robertson 饰）找上门，凯茜对科学和生命都充满热情，在无意间发现了神秘的徽章，她需要弗兰克的协助，破解零星线索，找到隐藏在神秘时空里的“明日世界”，以改变人类的命运……