神秘博士：空间和时间  

"Space"　　AmyistryingtogettheDoctor'sattentionwhilehefixestheTARDIS.ShediscoversthatRoryishelpingtheDoctorbyinstallingthermalcouplingsunderneaththeglassflooroftheTARDIS.RoryandAmythenstartasmallargument,whentheTARDISsuddenlyshakesandthelightsgoout.TheDoctorasksRoryifhedroppedathermalcoupling,whichRoryadmitstoandapologizesfordoing.Amythenapologizesaswell,and,attheDoctor'sconfusion,explainsthatRorywaslookingupherskirtthroughtheglassfloorwhenhedroppedthethermalcoupling.TheDoctorthennotesthattheyhavelandedthrough"emergencymaterialization"whichshouldhavelandedtheTARDISinthesafestspaceavailable.Thelightscomeon,revealinganotherTARDISinsidethecontrolroom-theTARDIShasmaterializedinsideitself.TheDoctorexperimentallywalksthroughthedooroftheTARDISinsidethecontrolroomandinstantlywalksbackintothecontrolroomthroughthedooroftheouterTARDIS.TheDoctortellsRoryandAmythattheyaretrappedina"spaceloop"andthatnothingcanenterorexittheTARDISeveragain.DespitetheDoctor'swords,anotherAmyentersthroughtheTARDISouterdoorsaying"Okaykids,thisiswhereitgetscomplicated."　　"Time"　　Continuingfromtheendingof"Space",theotherAmyrevealsthatsheisfromafewmomentsinthefuture,andisabletocomeintothecurrentouterTARDISbecause"theexteriorshelloftheTARDIShasdriftedforwardsintime".TheotherAmyknowswhattosayanddobecause,fromherperspective,sheisrepeatingwhatsheheardherselfsayearlieron.TheDoctorsendsthecurrentAmyintotheTARDISwithinthecurrentTARDIS,inorderto"maintainthetimeline".ThetwoAmystakeamomenttoflirtwitheachotherbeforethecurrentonedeparts,muchtotheDoctor'sexasperation.However,notlongafterthecurrentAmyhasleft,RoryandAmyenterthroughthedoorofouterTARDIS,explainingthattheDoctor,fromtheirperspective,justsentthemintotheinnerTARDIS.ThecurrentDoctorpromptlysendsthecurrentRoryandnow-currentAmythroughtheinnerTARDIS.TheDoctorthenexplainsthathewillsetupa"controlledtemporalimplosion"inorderto"resettheTARDIS",butinordertodosohemustknowwhichlevertouseonthecontrolpanel.Momentsafterhespeaks,anotherDoctorentersthoughtheouterTARDISdoorandtellshimtouse"thewibblylever",whichhequicklyoperates,thenstepsintotheinnerTARDIStotellhispastselfwhichlevertouse.TheinnerTARDISdematerialiseswhiletheouterTARDIS(beingthesameTARDIS)doesthesame,andtheDoctorassuresAmyandRorythattheyarenowbackin"normalflight",andthenadvisesAmyto"putsometrouserson."