aaaAyoungwomanenlistsinanundergroundgameofpainenduranceinthehopeofwinningthemilliondollarprize.Sheso

　　Scientistsatasecretundergroundcomplexhavefoundawaytotraveltoanotherdimension.Threedimension-travel

　　Asthedaughterofanundergroundhip-hoplegendwhodiedrightbeforehehitbig,Bri'sgotmassiveshoestofill

　AgroupofmilitaryelitefromtheU.S.,Russia,UK,ChinaandFrancejoinforcestofightaneliteundergroundterrori

剧集根据科尔森·怀特黑德撰写，获得普利策小说奖的同名作品改编，讲述黑奴女孩科拉为逃离佐治亚的种植园，而寻找传闻中的“地下铁道”，而就在寻找的过程中，她发现真的存在着字面意义的地下铁道，帮助奴隶们逃离残