The daughter of a right-winger, schoolgirl Jing Qiu is sent to the countryside for reeducation, and tasked to help write a textbook. There she meets Lao San, a young soldier with a bright future ahead. Despite the class divide and parental disapproval, romance blooms against turbulent times.

Archival material from the original NASA film footage – much of it seen for the first time – plus interviews with the surviving astronauts, including Jim Lovell, Dave Scott, John Young, Gene Cernan, Mike Collins, Buzz Aldrin, Alan Bean, Edgar Mitchell, Charlie Duke and Harrison Schmitt.