毕业于哈佛法学院的布兰恩（迈克尔·B·乔丹 Michael B. Jordan 饰）正在经营一个非营利性的组织，该组织致力于为被判死刑的囚犯提供法律援助。在伊娃（布丽·拉尔森 Brie Larson 饰）的帮助下，布兰恩的美好愿景落地生根，他拥有了属于自己的办公室，也收获了第一个委托人。 　　沃尔特（杰米·福克斯 Jamie Foxx 饰）曾经被判处死刑锒铛入狱，尽管他有着非常充分的不在场证明。一晃眼6年过去，当布兰恩见到沃尔特时，发现他的精神早已经被漫长的牢狱生活折磨的破碎不堪。布兰恩决定帮助沃尔特上诉，但他的热血举动在新上任的检察官那里遇冷。在失去了支持的情况下，布兰恩还是坚持为沃尔特翻案。A powerful and thought-provoking true-story, "Just Mercy" follows young lawyer Bryan Stevenson (Jordan) and his history-making battle for justice. After graduating from Harvard, Bryan might have had his pick of lucrative jobs. Instead, he heads to Alabama to defend those wrongly condemned, with the support of local advocate Eva Ansley (Larson.) One of his first, and most incendiary, cases is that of Walter McMillian (Foxx,) who, in 1987, was sentenced to die for the notorious murder of an 18-year-old girl, despite a preponderance of evidence proving his innocence and the fact that the only testimony against him came from a criminal with a motive to lie. In the years that follow, Bryan becomes embroiled in a labyrinth of legal and political maneuverings and overt and unabashed racism as he fights for Walter, and others like him, with the odds-and the system-stacked against them.