{{위키데이터 속성 추적}}
{{텔레비전 시즌 정보
 |시즌번호 = 4
 |배경색   = {{닥터 후 시즌색|뉴4}}
 |그림       = 
 |그림설명   = 
 |출연       = {{기호없는 목록|[[데이비드 테넌트]]|[[캐서린 테이트]]|[[프리마 아저먼]]|[[빌리 파이퍼]]|[[존 버로우만]]|[[엘리자베스 슬레이든]]}}
 |국가       = 영국<!--해외 방영국은 적지 않습니다.-->
 |스토리수   = 10
 |화수       = 13 (+ 외전 1개)
 |채널       = [[BBC One]]<!--해외 방영채널은 적지 않습니다.-->
 |시작일     = {{시작 날짜|2008|4|5}}
 |종료일     = {{끝 날짜|2008|7|5}}
 |에피소드 목록 = [[닥터 후의 에피소드 목록|《닥터 후》의 에피소드 목록]]
 |다음 시즌 = [[닥터 후 (2008~2010년 스페셜)|08~10 스페셜]]
}}
[[영국]]의 텔레비전 [[SF 드라마]] 《'''[[닥터 후]]'''》의 '''시리즈 4'''는 2007년 [[크리스마스 스페셜]] 에피소드 "[[Voyage of the Damned]]" (저주 받은 자들의 항해)를 시작으로 13화 분량의 정규 시리즈로 구성되었다. 2008년 4월 5일 첫번째 에피소드 "[[Partners in Crime]]"으로 시작, 석달 후 마지막 에피소드 "[[Journey's End]]"로 마무리되었다.

첫화 "Partners in Crime"는 [[도나 노블]] ([[캐서린 테이트]])가 [[10대 닥터]]의 정규 [[동행자 (닥터 후)|동행자]]로 처음 데뷔하는 에피소드다. 캐서린 테이트는 2006년 크리스마스 스페셜 "[[The Runaway Bride]]"에서 처음 모습을 비춘 바 있었다. 이와 더불어 지난 시즌에서 닥터의 동행자 [[마사 존스]]로 활약했던 [[프리마 아저먼]]이 다시 한번 출연하며, 마지막화에서는 [[존 버로우만]], [[엘리자베스 슬레이든]], [[노엘 클라크]], [[카밀 코두리]]도 출연한다. [[빌리 파이퍼]]는 [[로즈 타일러]] 역으로 마지막 세 에피소드에 출연하였다.

시리즈 제작은 2007년 8월 8일에 시작되어 2008년 3월 29일에 끝났다. 정규 시리즈 뿐만 아니라 Voyage of the Damned"의 앞선 시점을 다루는 단편 스페셜 에피소드 "[[Time Crash]]"가 제작되어 [[칠드런 인 니드]] 프로그램에서 공개되었으며, 2008년 7월 시리즈 4 종영 후 [[닥터 후 프롬]]에서 첫 공개된 미니 에피소드 "[[Music of the Spheres]]"도 제작됐다. 시리즈 4는 [[데이비드 테넌트]]가 닥터로 출연하는 동시에 [[러셀 T 데이비스]]가 프로듀서를 맡는 마지막 정규 시즌이며, [[닥터 후 (2008~2010년 스페셜)|2008~2010년 스페셜]]을 끝으로 하차하였다.

이번 시리즈에서는 [[군집 붕괴 현상|지구에서 벌이 사라지는 현상]]이 반복되어 언급되고, 여러 행성과 달이 사라지는 기이한 사건들로 구성된 느슨한 [[스토리 아크|떡밥]]으로 이뤄져 있다.

==에피소드 목록==
{{참고|닥터 후의 에피소드 목록 (2005년~현재)}}
<onlyinclude>{{Episode table
|background = {{닥터 후 시즌색|뉴4}}
|overall = 6 |series = 6 |title = 20 |director = 14 |writer = 18 |airdate = 16 |prodcode = 5 |viewers = 9 |aux4 = 6 |country = UK
|overallT   = 스토리
|aux4T      = AI지수
|aux4R      =<ref name="AllRatings">{{웹 인용|title=Ratings Guide|url=http://guide.doctorwhonews.net/info.php?detail=ratings&type=date|website=Doctor Who News|access-date=27 December 2014|archive-url=https://web.archive.org/web/20151018011335/http://guide.doctorwhonews.net/info.php?detail=ratings&type=date|archive-date=18 October 2015|url-status=live}}</ref>
|viewersR   =<ref name="AllRatings" />
|episodes   =
{{에피소드 표/부분|스페셜|c=#13ABEE|nopart=y}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 188
| EpisodeNumber2  = –
| Title           = [[Voyage of the Damned]]
| DirectedBy      = [[제임스 스트롱]]
| WrittenBy       = [[러셀 T 데이비스]]
| OriginalAirDate = {{시작 날짜|2007|12|25|df=y}}
| ProdCode        = 4X
| Viewers         = 13.31
| Aux4            = 86
| ShortSummary    = 타이타닉호에 타디스가 충돌하자 즉시 복구에 나선 [[10대 닥터]]. 알고 보니 역사 속의 [[타이타닉호]]가 아닌, 우주여객선이라는 사실을 깨닫는다. 배에 몰래 잠입한 닥터는 선내 웨이트리스로 근무하던 [[애스트리드 페스]]를 만나고, 승객들과 함께 지구의 런던 나들이에 나선다. As part of cruise line owner Max Capricorn's revenge plot after Max's [[Board of directors|board]] votes him out of his company, Captain Hardaker drops the vessel's shielding, causing meteors to be pulled toward the ship. The vessel begins plunging toward the Earth. Max has the [[List of Doctor Who robots#Heavenly Host|Heavenly Host]] androids kill any survivors. The Host take the Doctor to Max Capricorn. Following the Doctor, Astrid uses a forklift to push Max into the ship's engine, seemingly killing herself too. Reaching the bridge, the Doctor uses the heat from the re-entry to restart and stabilise the ship. The Doctor retrieves Astrid's pattern from her teleport bracelet, before her ghostly remains dissipate into space.
| LineColor       = 13ABEE
}}
{{에피소드 표/부분|본 시즌|c=#13ABEE|nopart=y}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 189
| EpisodeNumber2  = 1
| Title           = [[Partners in Crime]]
| DirectedBy      = 제임스 스트롱
| WrittenBy       = 러셀 T 데이비스
| OriginalAirDate = {{시작 날짜|2008|4|5|df=y}}
| ProdCode        = 4.1
| Viewers         = 9.14
| Aux4            = 88
| ShortSummary    = [[Donna Noble]] finds herself regretting declining the Doctor's invitation to travel in the TARDIS two years ago, and investigates conspiracy theories in the hope that she will find him again. The Doctor and Donna, neither aware of the other's involvement, both investigate Adipose Industries, which is marketing a special [[diet pill]]. The pills use body fat to [[Parthenogenesis|parthenogenetically]] create small white aliens called Adipose. The Doctor and Donna separately infiltrate Adipose Industries. As they explore the building, they encounter each other through opposite windows in an office. They are confronted by Miss Foster, an alien who is using Britain's population to create Adipose babies. The Doctor creates a diversion and escapes, so Miss Foster accelerates her plans. Throughout London, the Adipose begin to spawn and soon number several thousand. The Doctor and Donna prevent the plan from killing those who had taken the pill, and the remainder of the young Adipose make their way to Adipose Industries. The Adiposian First Family arrive in a spaceship and collect their young. The Doctor refrains from killing the young Adipose because they are children, to which Donna remarks that [[Martha Jones]] made him more human. Donna accepts the Doctor's offer to travel in the TARDIS.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 190
| EpisodeNumber2  = 2
| Title           = [[The Fires of Pompeii]]
| DirectedBy      = [[콜린 티그]]
| WrittenBy       = [[제임스 모런]]
| OriginalAirDate = {{시작 날짜|2008|4|12|df=y}}
| ProdCode        = 4.3
| Viewers         = 9.04
| Aux4            = 87
| ShortSummary    = The Doctor and Donna arrive in Pompeii one day before the [[eruption of Mount Vesuvius in 79]]. They discover that the TARDIS was sold to sculptor Lobus Caecilius, and they search for it. At Caecilius's house, the Doctor and Donna meet the local [[augur]], Lucius Petrus Dextrus, who has arrived to collect what resembles an oversized [[Printed circuit board|circuit board]] Caecilius has sculpted. The Doctor breaks into Lucius' house with Caecilius's son Quintus, and finds numerous circuit boards made by multiple sculptors without the others knowing. The Doctor deduces that the circuits will form an energy converter. The Doctor discovers that the Sibylline Sisterhood soothsayers are being slowly turned into stone creatures called [[List of Doctor Who universe creatures and aliens (H-P)#Pyrovile|Pyroviles]]. He escapes with Donna into the heart of Mount Vesuvius, and is faced with the choice of either erupting the volcano and killing Pompeii's inhabitants, or letting the Pyroviles use the converter to turn all of humanity into Pyroviles. The Doctor and Donna trigger the eruption and run for the TARDIS, leaving Caecilius and his family, but Donna begs the Doctor to go back and save them. The Doctor relents and saves Caecilius and his family, leaving them on a hill overlooking Pompeii.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 191
| EpisodeNumber2  = 3
| Title           = [[Planet of the Ood]]
| DirectedBy      = [[그레이엄 하퍼]]
| WrittenBy       = [[키스 템플]]
| OriginalAirDate = {{시작 날짜|2008|4|19|df=y}}
| ProdCode        = 4.2
| Viewers         = 7.50
| Aux4            = 87
| ShortSummary    = The Doctor and Donna land on the [[Ood]]'s home planet, the Ood-Sphere where a company called Ood Operations has been selling the Ood as slaves. A member of Friends of the Ood, Dr Ryder, infiltrates the company and lowers the settings on the force field which blocks the giant brain that telepathically connects all of the Ood. The Ood start a revolution. Halpen murders Dr Ryder, but transforms into an Ood because of his personal Ood, Ood Sigma, uses Halpen's hair loss medication to slowly convert Halpen into an Ood. Sigma promises to take care of Halpen. The Doctor shuts down the force-field, freeing the Ood.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 192a{{앵커|ep192}}
| EpisodeNumber2  = 4
| Title           = [[The Sontaran Stratagem]]
| DirectedBy      = [[더글라스 매키넌]]
| WrittenBy       = [[헬런 레이너]]
| OriginalAirDate = {{시작 날짜|2008|4|26|df=y}}
| ProdCode        = 4.4
| Viewers         = 7.06
| Aux4            = 87
| ShortSummary    = Martha Jones calls the Doctor for assistance during an investigation by [[UNIT]]. Minutes after the TARDIS materialises, Martha authorises the raid of an ATMOS factory. ATMOS is marketing a [[satellite navigation]] system developed by young prodigy [[Luke Rattigan]]. The system also reduces carbon dioxide emissions to zero; UNIT requested the Doctor's help because the technology may be alien, and they are also concerned about 52 early simultaneous deaths that occurred spontaneously. The Doctor investigates the system at Rattigan's private school and discovers a plot by an alien warrior race known as the [[Sontaran]]s. Instead of an outright invasion, they are taking control with a combination of human clones, mind control, and ATMOS; Martha is captured and cloned to provide a mole within UNIT. Donna returns home to her mother Sylvia and grandfather [[Wilfred Mott|Wilfred]]. The Doctor investigates the ATMOS devices and discovers it can emit a poisonous gas. Wilfred attempts to take the car off the road, but is trapped when all 400 million ATMOS devices installed in cars worldwide are activated. The Doctor stares helplessly at a street full of cars emitting the gas, while the Sontarans prepare themselves for battle.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 192b
| EpisodeNumber2  = 5
| Title           = [[The Poison Sky]]
| DirectedBy      = 더글라스 매키넌
| WrittenBy       = 헬렌 레이너
| OriginalAirDate = {{시작 날짜|2008|5|3|df=y}}
| ProdCode        = 4.5
| Viewers         = 6.53
| Aux4            = 88
| ShortSummary    = Sylvia frees Wilfred. The Doctor and Donna return to the ATMOS factory, where the Doctor warns UNIT not to engage the Sontarans. The Doctor tells Donna to stay in the TARDIS, but the Sontarans teleport the TARDIS aboard their ship. The Sontarans defeat UNIT at the factory and take it over. UNIT manages a counterattack. Finding the TARDIS missing, the Doctor tells Donna to re-engage the teleport pods. The Doctor enters the factory and awakens the real Martha. The Doctor learns from Martha's clone that the gas is being used to convert Earth into a breeding world for the Sontarans. The Doctor tells Donna how to use the pods and teleport the TARDIS to Earth. The Doctor constructs an atmospheric converter at Rattigan's academy, which harmlessly ignites the gas and allows the humans to breathe. He calibrates the converter so it can ignite the Sontarans on board their ship, and teleports on board. The Doctor offers Staal the chance to retreat, but Staal encourages him to destroy them. Rattigan switches places with the Doctor, sacrificing himself to destroy the Sontarans. Martha is trapped on the TARDIS when it takes flight on its own.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 193
| EpisodeNumber2  = 6
| Title           = [[The Doctor's Daughter]]
| DirectedBy      = [[앨리스 트로턴]]
| WrittenBy       = [[스티븐 그린혼]]
| OriginalAirDate = {{시작 날짜|2008|5|10|df=y}}
| ProdCode        = 4.6
| Viewers         = 7.33
| Aux4            = 88
| ShortSummary    = The TARDIS takes the Doctor, Martha, and Donna to the planet Messaline. They are met by soldiers working for General Cobb. The soldiers force the Doctor into a progenation machine, which uses his DNA to generate a soldier who becomes the Doctor's daughter. The other occupants of the planet, the [[List of Doctor Who universe creatures and aliens (H–P)#Hath|Hath]], attack, taking Martha hostage. The Doctor and Donna are taken to see Cobb, and Donna names the Doctor's daughter "Jenny". Elsewhere, Martha tends to an injured Hath, and they take her back to their command center. The General explains that they were meant to live with the Hath, but a dispute arose over "the Source". The Doctor inadvertently reveals its location to the humans and the Hath, and the two sides prepare for battle. The Source turns out to be a terraforming device. The Doctor, Martha, Donna, and Jenny make their way to the Source before both armies arrive. The Doctor declares the war to be over and releases the terraforming agent. Cobb went snap and tries to shoot the Doctor, but Jenny takes the bullet to the chest and dies. Later, Jenny revives and commandeers a rocket to leave the planet.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 194
| EpisodeNumber2  = 7
| Title           = [[The Unicorn and the Wasp]]
| DirectedBy      = 그레이엄 하퍼
| WrittenBy       = [[개러스 로버츠]]
| OriginalAirDate = {{시작 날짜|2008|5|17|df=y}}
| ProdCode        = 4.7
| Viewers         = 8.41
| Aux4            = 86
| ShortSummary    = The Doctor and Donna invite themselves to a dinner party in 1926, hosted by Lady Clemency Eddison and Hugh Curbishley, where one of the guests is [[Agatha Christie]]. The Doctor realises that they have arrived on the day Agatha inexplicably disappears. A giant shapeshifting alien wasp in human form called a [[List of Doctor Who universe creatures and aliens (Q–Z)#Vespiform|Vespiform]] kills three of the guests with methods similar to the murders in Agatha's murder mysteries. The Vespiform is revealed to be Lady Eddison's illegitimate half-human son, Reverend Golightly. Golightly, who has a telepathic link with Lady Eddison through her necklace, became aware of his alien nature and absorbed the details of ''[[The Murder of Roger Ackroyd]]'', an Agatha Christie murder mystery his mother was reading at the time. He transforms into the Vespiform and threatens the guests. Agatha lures him towards the [[Silent Pool]]. Donna throws the necklace into the water, and the wasp dives after it and drowns. Due to her own connection with the necklace, Agatha falls unconscious and suffers from [[amnesia]]. This becomes the event that gave her the amnesia during her disappearance, and the Doctor drops her off at the [[Old Swan Hotel#Agatha Christie's disappearance|Harrogate Hotel]].
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 195a{{앵커|ep195}}
| EpisodeNumber2  = 8
| Title           = [[Silence in the Library]]
| DirectedBy      = [[유로스 린]]
| WrittenBy       = [[스티븐 모팻]]
| OriginalAirDate = {{시작 날짜|2008|5|31|df=y}}
| ProdCode        = 4.9
| Viewers         = 6.27
| Aux4            = 89
| ShortSummary    = The Doctor and Donna are summoned to a planet-sized library in the 51st century. A scan for life shows the Doctor and Donna as the only humanoid life signs but trillions of nonhuman life forms they cannot see or hear are present. A team of explorers led by [[River Song (Doctor Who)|River Song]] (who summoned the Doctor) arrives, and River acts like she knows the Doctor. She discovers the Doctor has not met her yet. The Library's operation system appears to be connected to the mind of the girl living in 21st-century Earth. The girl’s psychiatrist Dr. Moon visits the girl, telling her that the library is actually real, and he implores her to save the people in the library. The [[List of Doctor Who universe creatures and aliens (Q–Z)#Vashta Nerada|Vashta Nerada]] kill two of the team; the Doctor and Donna learn that the team are wearing communication devices which can store their thought patterns after death. The Doctor explains that the Vashta Nerada are creatures that appear as shadows. The creatures use Dave's suit to chase the others. The Doctor teleports Donna back to the TARDIS, but the teleport fails. The Doctor later finds an information node with Donna's face which tells him Donna has been saved.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 195b
| EpisodeNumber2  = 9
| Title           = [[Forest of the Dead]]
| DirectedBy      = 유로스 린
| WrittenBy       = 스티븐 모팻
| OriginalAirDate = {{시작 날짜|2008|6|7|df=y}}
| ProdCode        = 4.10
| Viewers         = 7.84
| Aux4            = 89
| ShortSummary    = Strackman Lux explains that the Library was constructed by his grandfather, who had a giant computer constructed at Library's core to preserve Lux’s aunt Charlotte's mind. Charlotte "saved" the thousands of missing patrons' minds to the data core to escape the Vashta Nerada. Donna has also been uploaded to the simulation in the core. One of the dead team, Evangelista, reminds Donna her world is not real. After the Vashta Nerada kill more of the expedition, the Doctor discovers the Vashta Nerada’s forests were used to create the books of the Library. The Doctor tries sacrificing himself by giving the computer memory space from his mind to allow the patrons to be teleported back; River knocks the Doctor out and takes his place. The Doctor tries to stop her, but River insists that his death now would prevent her meeting him in her own past. As River initiates the connection, the patrons stored inside the computer re-materialise in the Library. The Doctor finds a data recorder inside the [[sonic screwdriver]] his future self gave River, which has preserved her consciousness, and he uploads her pattern, upon which River wakes up in the simulation with her dead crew mates.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 196
| EpisodeNumber2  = 10
| Title           = [[Midnight (닥터 후)|Midnight]]
| DirectedBy      = 앨리스 트로턴
| WrittenBy       = 러셀 T 데이비스
| OriginalAirDate = {{시작 날짜|2008|6|14|df=y}}
| ProdCode        = 4.8
| Viewers         = 8.05
| Aux4            = 86
| ShortSummary    = The Doctor and Donna visit the resort planet Midnight, the surface of which is bathed in lethal radiation. The Doctor plans to take a shuttle tour to visit a waterfall made of sapphires, and decides to take the trip with other tour-goers. Mid-route, the shuttle stops; the Doctor joins Driver Joe and Mechanic Claude in the cockpit and see all systems appear operational, but they are simply not moving. Joe calls in for a rescue shuttle. The Doctor returns to the cabin, before knocking begins on the sides of the shuttle. When the shuttle is rocked violently, the hostess finds the cockpit has been ripped out. Sky begins repeating what the Doctor and passengers are saying. Sky starts to only repeat what the Doctor says, and soon is speaking simultaneously with him, and eventually starts saying things before the Doctor repeats them. While most of the other passengers begin to sacrifice the Doctor, believing him to now be possessed, the hostess begins to believe in the Doctor. The hostess grabs Sky and sacrifices herself by pulling the two of them into the radiation. The Doctor returns to normal, and the shuttle passengers are rescued and returned to the resort.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 197
| EpisodeNumber2  = 11
| Title           = [[Turn Left]]
| DirectedBy      = 그레이엄 하퍼
| WrittenBy       = 러셀 T 데이비스
| OriginalAirDate = {{시작 날짜|2008|6|21|df=y}}
| ProdCode        = 4.11
| Viewers         = 8.09
| Aux4            = 88
| ShortSummary    = A fortune teller approaches Donna, who helps her recall what led to her meeting the Doctor. Donna remembers she was driving to get a new job, and turned left instead of right to get a [[Temporary work|temp]] position. When the fortune teller convinces Donna to turn right instead, a large beetle working for [[List of Doctor Who universe creatures and aliens (Q–Z)#The Trickster|the Trickster]] attaches itself to her back. Donna's decision creates an alternate reality, where she never met the Doctor, so the Doctor drowned after killing the Racnoss children. [[Sarah Jane Smith|Sarah Jane]] and Martha die. The spaceliner ''Titanic'' crashes into Buckingham Palace, killing millions in London's destruction and Britain is placed under martial law. [[Rose Tyler|Rose]] appears to Donna to save her and her family from the destruction of London, but they are forcibly displaced. Explaining that the stars are going out in every universe, Rose insists that Donna travel back and turn left. Donna is transported back, and is hit by a passing truck, creating a traffic jam that causes her past self to turn left. As Donna dies, Rose whispers a message to her. The alternate universe disappears, and Donna wakes up. Donna recalls Rose's message was the words: "Bad Wolf". The Doctor announces that the universe is in danger.
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 198a{{앵커|ep198}}
| EpisodeNumber2  = 12
| Title           = [[The Stolen Earth]]
| DirectedBy      = 그레이엄 하퍼
| WrittenBy       = 러셀 T 데이비스
| OriginalAirDate = {{시작 날짜|2008|6|28|df=y}}
| ProdCode        = 4.12
| Viewers         = 8.78
| Aux4            = 91
| ShortSummary    = The Doctor contacts the Shadow Proclamation to find Earth after it is teleported away. They determine twenty-seven missing planets automatically reorganise into a specific pattern when placed near each other. The Doctor traces the planets to the Medusa Cascade, an inter-universal rift. A [[Dalek]] force, led by their creator [[Davros]], quickly subjugate Earth. Davros, alive after the [[Time War (Doctor Who)|Time War]], was saved by [[Cult of Skaro|Dalek Caan]], who become [[precognition|precognitive]] at the cost of his sanity. The Doctor's former companions Captain [[Jack Harkness]], Martha Jones, Sarah Jane Smith, and Rose Tyler hide in various places. They are all contacted by former [[Prime Minister of the United Kingdom|prime minister]] [[Harriet Jones]] through a secret "Subwave Network". They attempt to reach the Doctor by amplifying the subwave signal. The Doctor receives the transmission and traces the signal: the Doctor, and consequently the Daleks, are able to locate Earth in a [[pocket universe]], and Harriet is killed. The Doctor lands on the same street as Rose, but is shot by a Dalek. Carried into the TARDIS, the Doctor begins to [[Regeneration (Doctor Who)|regenerate]].
| LineColor       = 13ABEE
}}
{{Episode list/sublist|Doctor Who (series 4)
| EpisodeNumber   = 198b{{앵커|ep198}}
| EpisodeNumber2  = 13
| Title           = [[Journey's End]]
| DirectedBy      = 그레이엄 하퍼
| WrittenBy       = 러셀 T 데이비스
| OriginalAirDate = {{시작 날짜|2008|7|5|df=y}}
| ProdCode        = 4.13
| Viewers         = 10.57
| Aux4            = 91
| ShortSummary    = The Doctor is regenerating, and part-way through the process, he halts the transformation by transferring the remaining energy into his severed hand. The TARDIS is transported to the Daleks' flagship the ''Dalek Crucible''. The Supreme Dalek orders the TARDIS to be destroyed, with Donna locked inside. Donna touches the severed hand filled with regeneration energy, causing a new, cloned Doctor to form, which saves the TARDIS from destruction. Davros explains that the stolen planets form a "Reality Bomb" which has the potential to destroy all matter in every universe. The clone Doctor and Donna arrive and try to refocus the bomb, but fail. Donna becomes imbued with [[Time Lord]] knowledge from the clone Doctor, and she disables the bomb. She and the two Doctors relocate the missing planets apart from Earth. The new Doctor destroys the Daleks and the ''Crucible''; Davros refuses to be saved. The companions "tow" the Earth back into its original orbit with the TARDIS. The Doctor returns Rose to her universe, and sends the cloned Doctor with her. Donna's mind becomes overwhelmed by the Time Lord knowledge; the Doctor is forced to wipe her mind against her wishes, and returns her home.
| LineColor       = BC2424
}}
}}</onlyinclude>

===보조 에피소드===
{{Episode table |background = {{닥터 후 시즌색|뉴4}} |overall = 6 |title = 26 |director = 14 |writer = 18 |airdate = 16 |prodcode = 5 |viewers = 15 |country = UK |episodes = 
{{Episode list
| EpisodeNumber   = 1
| Title           = [[Time Crash]]
| DirectedBy      = [[그레이엄 하퍼]]
| WrittenBy       = [[스티븐 모팻]]
| OriginalAirDate = {{시작 날짜|2007|11|16|df=y}}
| ProdCode        = CIN2
| Viewers         = 11.0<ref>{{잡지 인용|last=Pixley|first=Andrew|date=14 August 2008|title=Time Crash|magazine=[[Doctor Who Magazine]]|publisher=[[Panini Comics]]|location=Royal Tunbridge Wells|volume=The Doctor Who Companion: Series 4|issue=Special Edition 20|pages=6–9}}</ref>
| ShortSummary    = 마사와 헤어진 닥터. 출발하려던 그때 갑자기 타디스가 거칠게 흔들리며 경보를 울린다. 시스템을 체크하던 닥터는 똑같이 시스템을 체크하고 있던 [[5대 닥터]]와 부딪힌다. 10대 닥터는 과거의 자신임을 단번에 알아보고 특징을 하나하나 짚으며 재밌어한다. 하지만 10대 닥터가 타디스로 침입해 들어온 광팬이라 여긴 5대 닥터는 짜증을 낸다. 그 와중에 두 개의 타디스가 결합되어 거대 블랙홀을 일으킬 만한 패러독스를 발생시킬 위기가 터졌음을 두 닥터가 알게 된다. 10대 닥터는 이전에 미래의 자신이 어떻게 대처했는지를 기억해내고 [[초신성]]을 끌어다 위기를 해결한다. 이에 5대 닥터는 10대 닥터가 정말 자기 자신임을 알게 된다. 10대 닥터는 5대 닥터를 별개의 타임라인 속으로 분리시키고, 두 사람은 작별 인사를 나눈다. 사라지기 직전 5대 닥터는 10대 닥터에게 타디스 보호막을 올려두라는 충고를 남기지만, 그럴 새도 없이 타디스에 타이타닉호가 충돌하고 만다.
| LineColor       = BC2424
}}
}}

== 각주 ==
{{각주}}

== 외부 링크 ==
* {{공식 웹사이트}}
* {{IMDb episodes|0436992|Doctor Who}}
* {{Epguides|DoctorWho_2005|Doctor Who}}

{{닥터 후 에피소드|N4}}

[[분류:10대 닥터 에피소드| ]]
[[분류:닥터 후의 시즌|시리즈 04]]
[[분류:2007년 텔레비전 시즌]]
[[분류:2008년 텔레비전 시즌]]