Mo Zaltzman is a beloved Hasidic rabbi in a dusty desert town. When his congregation is violently attacked, police quickly arrest a young white nationalist who threatened them in the past, but Rabbi Mo doesn’t believe the troubled teen is a killer. Since no one else will investigate, Rabbi Mo becomes the detective. As bodies pile up, he must learn how to use a gun to battle the real enemy.

有别于先前两部林肯电影聚焦的吸血鬼狩猎或林肯解放奴隶，《拯救林肯》则提出了一个新的历史人物——沃德山·拉蒙元帅。汤姆·阿曼德斯饰演了美国第16任总统亚伯拉罕·林肯，本片主要讲述了他的私人保镖沃德山·拉蒙元帅在南北战争最黑暗的时期，多次保护林肯的生命安全这样一个真实的故事。