power doctor power fourth episode seventh series british science fiction television programme doctor aired bbc bbc september written directed episode alien time traveller doctor spends time earth travelling companions husband activity millions small appeared overnight power focused amy point view impact doctor influence lives leaving episode story inspired man came dinner story episode saw return unit introduced new scientific advisor daughter episode featured brief cameo appearances lord sugar professor despite penultimate episode block series power filmed episode episode watched million viewers critical reception episode generally positive highlighting emotion humour critics derided solution plot plot amy tried adjust normal life travelling doctor day small black appear globe appear doctor arrives help having alerted news stories unit storms williams house soon response doctor arrival unit force led scientific adviser daughter doctor friend unit commander kate explains idea purpose hope doctor help days watching ordinary occurring doctor decides problem puts father brian charge watching returns departs tardis following year amy live lives making commitments despite knowing doctor visits wedding anniversary party takes trip seven weeks returns minutes leaving brian notices absence private asks doctor fate previous companions doctor admits left left died promises happen amy humanity arrival use similar mundane functions unknown hospital works young girl cube controls pair identical distorted faces capture selected patients year arrival start activate scanning world information networks acting self defence doctor realises slow invasion brian hospital help injured doctor amy summoned unit headquarters tower london kate shows investigation single different fashion simultaneously display number slowly count hospital brian taken lift disappear soon follows finds lift portal spaceship earth orbit open reach zero appearing soon reports people dying cardiac arrest appear globe doctor finds hearts stopped realises sent electrical impulse killed human population kate team traces communication seven different outposts world including hospital doctor amy race amy uses restart doctor heart find girl doctor realises android disable locating lift portal aboard ship amy rescue brian doctor encounters member according legend self appointed pest controllers universe states ships tied outposts humanity spreads galaxy prepares launch second wave kill disappearing doctor uses ship computer reverse shock gave original victims restoring escape ship feedback causes explode world recovers doctor prepares leave brian insists amy stating adventures lifetime opportunity tells doctor bring safe goodbye brian depart tardis continuity doctor tells brian previous companions died reference point doctor amy relax eat fish fingers reference eleventh hour amy meal newly opened hotel ruined spaceship parked previously featured fourth doctor serial terror appear 50th anniversary special day doctor tower london previously served unit base christmas invasion mentioned doctor mentions having metallic dog refers robotic dog fourth doctor production episode title originally reported later announced power previously written doctor episodes hungry earth cold blood second episode seventh series spaceship major contributor series power second contribution doctor seventh series spaceship described power lovely big earth invasion story different ones focused amy time doctor impact lives stated told amy point view celebrating leave following episode brief showrunner live doctor man came dinner doctor style inspired story smith disgust doctor remark concerning twitter episode reflecting real life decision stay social network request power sees return unit appeared regular feature doctor era episode reveals running unit daughter previously appeared pictures direct video films played following death actor early doctor learned brigadier death sixth series finale wedding river song enjoyed working describing graceful funny charming absolute delight read power took place lock cardiff april filmed series production block schedule final episode filmed amy scene filmed getting tardis doctor saying brian doors closed smith started crying exterior scenes amy house shot june july briefly returning june shoot producer stated individual cube props added computer generated imagery cgi amy doctor conversation outside tower london filmed genuine location london olympics shot studio cardiff live action combined footage create illusion episode features cameos physicist lord sugar long time fans program sugar cameo fact filmed set apprentice director standing person fired broadcast reception power broadcast united_kingdom bbc bbc september overnight ratings showed watched audience million live final consolidated rating rose million viewers making thirteenth watched programme week british television fifth highest rated bbc episode received million requests bbc online placing fourth month site episodes series received appreciation index considered excellent critical reception power received generally positive reviews guardian stated bloody loved episode calling nostalgic run best bits era noted weaknesses davies adventures ending magic button couldn explain power sense completely gorgeous writing independent praised way episode showed companion life outside tardis celebrated amy introduction connection brigadier radio_times reviewer described beautifully television welcomed kate wonderful addition stated entirely buy doctor solution graded episode despite noting plot fairly standard easily wrote concept slow invasion executed bit business ign rated power score writing quarters simply brilliant emotion humour criticised rushed resolution lack explanation aliens hospital digital spy reviewer gave episode stars describing emotional fun involving doctor episode despite disappointing resolution sfx gave episode half stars naming best doctor episode noted ending potentially going let enjoy unit humour daily_telegraph reviewer gave score half stars feeling water lead following finale described minutes heavy exposition little pointed unexplained action hospital enjoyed amy doctor conversation countdown element mystery found explanation conclusion easy
The Power of Three (Doctor Who)