根据美国历史上首批进入太空的宇航员的真实故事改编而成,他们是阿兰·舍帕德、戈斯·格瑞森、约翰·格婪尼、斯高特·卡本特、高登·库伯等,共七位英雄。影片详细地描绘了美国太空计划的诞生过程以及第一批航天员诞生的历史故事。Tom Wolfe's book on the history of the U.S. Space program reads like a novel, and the film has that same fictional quality. It covers the breaking of the sound barrier by Chuck Yeager to the Mercury 7 astronauts, showing that no one had a clue how to run a space program or how to select people to be in it. Thrilling, funny, charming and electrifying all at once.