Middle-aged man Frank Walker (George Clooney) and the girl Cathy Newton (Britt Robertson) beside him complain bitterly. He lamented that modern society is full of war, hunger, disasters and all kinds of injustice. He recalled an experience in his childhood. Back then, little Frank (Thomas Robinson) came to a theme park with his proud invention, but ended up with a failure. The beautiful girl Athena (Raffey Cassidy) secretly lent a hand and let him see the astonishing future world. In contrast, Cathy is a sunny girl full of fantasies about the future. She longs to travel in space one day. With her dreams in her heart, she even broke into NASA privately, causing a lot of trouble for this, but she got a mysterious badge and got to know Frank. The fateful meeting of the old and the young makes the fantasy world of the future no longer far away...