本片改编自亚瑟王圣剑的传说，剧情颠覆传统，一路探索亚瑟从市井到王座的征途。亚瑟的父亲在他小时候就惨遭杀害，亚瑟的叔叔伏提庚（裘德·洛 Jude Law 饰）篡取王位，剥夺了亚瑟（查理·汉纳姆 Charlie Hunnam 饰）的天赐之权。他浑然不知自己的身世，在城市的穷街陋巷里摸爬滚打着长大，但当他拔出石中剑，他的人生就彻底地天翻地覆了，亚瑟不得不接受自己真正的使命。
In 1815, an American Legend, whose wife has fallen deathly ill, leaving his young children to survive on their own, must fight his way back to them across the many perils found in the Savage Lands of the wild frontier.
Written by Jonathan Bernstein and James Greer, who penned Steven Soderbergh’s Unsane, the film centers on Cochran’s Ally Braun, an adopted 16-year-old with a mysterious illness who learns her bio-tech billionaire parents (Dastmalchian and Greene) are harv
