Eve'sattemptstohelphersisterKTpassforhumanarederailedwhenamiraculouslyrecoveredKatherinereturnstoCalimov.ToNickandEve'shorror,Katherinerevealshernewrangeofchildbots,whichhavebeenplacedwithlocalfamilies.TopreventKatherinerestoringKTtofactorysettings,EvesmugglesheroutofCalimovandbacktotheClarkehouse.ButwithWillandLilyinsistingKTisreturnedtoCalimov,Eveandhersisterareforcedtotakemattersintotheirownhands.ThesituationescalateswhenKatherine'schildbotsstarttomalfunctionanditisKTwhocomesundersuspicion,admittingshehasnowishtopassashuman.InordertomakeEveprovesheloveshersisterassheis,KTwantsEvetorevealherownrobotidentitytotheworld.Trappedinsidethehousebythechildbots,andwithpoliceandreportersgatheringoutside,thegang'sworstfearshavebeenrealised.WithEveabouttoadmithersecrettotheworldonliveTV,canWill'snanobotssavetheday?当一个奇观般康复的凯瑟琳回到卡利莫夫时,伊芙试图协助她姐姐KT经过人肉之门的努力被打乱了。令尼克和伊芙感到恐惧的是,凯瑟琳展现了她新的一系列儿童机器人,这些机器人被安排在外地家庭中。为了防止凯瑟琳将KT恢复到工厂设置,伊芙将她从卡利莫夫偷运回克拉克家。但是由于威尔和莉莉坚持要把KT送回卡利莫夫,伊芙和她的妹妹自愿自己处置事情。当凯瑟琳的儿童机器人末尾出现缺点,KT遭到疑心,供认她不想冒充人类时,状况就晋级了。为了让伊芙证明她爱她妹妹的原本面目,KT希望伊芙向全世界展现她自己的机器人身份。被儿童机器人困在屋内,警察和记者聚集在屋外,这伙人最可怕的恐惧曾经看法到。随着伊芙行将在电视直播中向全世界地下她的秘密,威尔的纳米机器人能挽救这一天吗?