Eve’sattemptstohelphersisterKTpassforhumanarederailedwhenamiraculouslyrecoveredKatherinereturnstoCalimov.ToNickandEve’shorror,Katherinerevealshernewrangeofchildbots,whichhavebeenplacedwithlocalfamilies.TopreventKatherinerestoringKTtofactorysettings,EvesmugglesheroutofCalimovandbacktotheClarkehouse.ButwithWillandLilyinsistingKTisreturnedtoCalimov,Eveandhersisterareforcedtotakemattersintotheirownhands.ThesituationescalateswhenKatherine’schildbotsstarttomalfunctionanditisKTwhocomesundersuspicion,admittingshehasnowishtopassashuman.InordertomakeEveprovesheloveshersisterassheis,KTwantsEvetorevealherownrobotidentitytotheworld.Trappedinsidethehousebythechildbots,andwithpoliceandreportersgatheringoutside,thegang’sworstfearshavebeenrealised.WithEveabouttoadmithersecrettotheworldonliveTV,canWill’snanobotssavetheday?当一个偶迹般康复的凯瑟琳回到卡利莫夫时，伊芙试图协助她姐姐KT通过人肉之门的全力被打乱了。令尼克和伊芙感到恐怖的是，凯瑟琳展示了她新的一系列儿童机器人，这些机器人被安置在当地家庭中。为了防止凯瑟琳将KT恢复到工场设置，伊芙将她从卡利莫夫偷运回克拉克家。然则由于威尔和莉莉坚持要把KT送回卡利莫夫，伊芙和她的妹妹被迫本身处理事情。当凯瑟琳的儿童机器人最先出现故障，KT受到思疑，启认她不想混充人类时，情况就升级了。为了让伊芙证明她爱她妹妹的正本面目，KT但愿伊芙向全世界展示她本身的机器人身份。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已经意识到。随着伊芙即将在电视直播中向全世界公开她的神秘，威尔的纳米机器人能挽救这一天吗？