DOCTOR WHO - SEASON: 6 EPISODE: 1 - THE IMPOSSIBLE ASTRONAUT

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Season 7Episode 22 - Farewell To Matt SmithEpisode 21 - The Time of the DoctorEpisode 20 - Doctor Who Live: The AfterpartyEpisode 19 - The Day of the Doctor - 50th Anniversary SpecialEpisode 18 - Greatest Monsters and VillainsEpisode 17 - The Night of the Doctor Episode 16 - The Five Ish Doctors RebootEpisode 15 - Revisited The Eighth DoctorEpisode 14 - Doctor Who Live: The Next DoctorEpisode 13 - The Name of the Doctor & Bonus: The Ultimate Guide 2013Episode 12 - Nightmare in Silver Episode 11 - The Crimson HorrorEpisode 10 - Journey to the Centre of the TARDISEpisode 9 - HideEpisode 8 - Cold WarEpisode 7 - Phantom of the HexEpisode 6 - The Bells of St. JohnEpisode 5 - The Angels Take Manhattan & Bonus: Season 7 Minisode Christmas Special The SnowmenEpisode 4 - The Power of Three & Bonus: Not Quite Confidential Christmas 2012Episode 3 - A Town Called Mercy & Bonus: Special The Destinations Of Doctor WhoEpisode 2 - Dinosaurs on a Spaceship & Bonus: Special The Timey Wimey of Doctor WhoEpisode 1 - Asylum of the Daleks & Bonus: The Women of Doctor WhoEpisode 0 - The Science of Doctor Who & Bonus: The Snowmen Season 6Episode 16 - Best of the Christmas SpecialsEpisode 15 - The Doctor, The Widow, and The WardrobeEpisode 14 - Red Nose Day Special 2011 "Space" and "Time"Episode 13 - The Wedding of River SongEpisode 12 - Closing TimeEpisode 11 - The God ComplexEpisode 10 - The Girl Who WaitedEpisode 9 - Night TerrorsEpisode 8 - Let´s Kill HitlerEpisode 7 - A Good Man Goes to War (1) Episode 6 - The Almost People (2) Episode 5 - The Rebel Flesh (1)Episode 4 - The Doctor´s WifeEpisode 3 - The Curse of the Black SpotEpisode 2 - Day of the MoonEpisode 1 - The Impossible Astronaut Season 5Episode 13 - The Big BangEpisode 12 - The Pandorica OpensEpisode 11 - The LodgerEpisode 10 - Vincent and the DoctorEpisode 9 - Cold BloodEpisode 8 - The Hungry EarthEpisode 7 - Amy´s ChoiceEpisode 6 - The Vampires of VeniceEpisode 5 - Flesh and StoneEpisode 4 - The Time of AngelsEpisode 3 - Victory of the DaleksEpisode 2 - The Beast BelowEpisode 1 - The Eleventh Hour Season 4Episode 13 - Journey´s EndEpisode 12 - The Stolen EarthEpisode 11 - Turn LeftEpisode 10 - MidnightEpisode 9 - Forest of the DeadEpisode 8 - Silence in the LibraryEpisode 7 - The Unicorn and the WaspEpisode 6 - The Doctor´s DaughterEpisode 5 - The Poison SkyEpisode 4 - The Sontaran StratagemEpisode 3 - Planet of the OodEpisode 2 - The Fires of PompeiiEpisode 1 - Partners in CrimeEpisode 0 - Voyage of the Damned Season 3Episode 13 - Last of the Time LordsEpisode 12 - The Sound of DrumsEpisode 11 - UtopiaEpisode 10 - BlinkEpisode 9 - The Family of BloodEpisode 8 - Human NatureEpisode 7 - 42Episode 6 - The Lazarus ExperimentEpisode 5 - Evolution of the DaleksEpisode 4 - Daleks in ManhattanEpisode 3 - GridlockEpisode 2 - The Shakespeare CodeEpisode 1 - Smith and JonesEpisode 0 - The Runaway Bride Season 2Episode 13 - DoomsdayEpisode 12 - Army of GhostsEpisode 11 - Fear HerEpisode 10 - Love & MonstersEpisode 9 - The Satan PitEpisode 8 - The Impossible PlanetEpisode 7 - The Idiot´s LanternEpisode 6 - The Age of SteelEpisode 5 - Rise of the CybermenEpisode 4 - The Girl in the FireplaceEpisode 3 - School ReunionEpisode 2 - Tooth and ClawEpisode 1 - New EarthEpisode 0 - The Christmas Invasion Season 1Episode 13 - The Parting of the WaysEpisode 12 - Bad WolfEpisode 11 - Boom TownEpisode 10 - The Doctor DancesEpisode 9 - The Empty ChildEpisode 8 - Father´s DayEpisode 7 - The Long GameEpisode 6 - DalekEpisode 5 - World War ThreeEpisode 4 - Aliens of LondonEpisode 3 - The Unquiet DeadEpisode 2 - The End of the WorldEpisode 1 - Rose
"Doctor Who"  - Season: 6 Episode: 1  - The Impossible AstronautFour envelopes, numbered two, three and four - each containing a date, time and map reference, unsigned, but TARDIS blue - begin the latest series of the time-travelling adventures. Who sent them? And who received the missing number one? This strange summons reunites The Doctor, Amy, Rory and River Song in the middle of the Utah desert and unveils a terrible secret that The Doctor's friends must never reveal to him. Placing his life entirely in their hands, The Doctor agrees to search for the recipient of the fourth envelope. Just who is Canton Everett Delaware the Third? And what is the relevance of their only other clue: "Space 1969"? Their quest lands them in the Oval Office, where they are enlisted by President Nixon himself to assist enigmatic former FBI agent Canton in saving a terrified little girl from a mysterious spaceman.

River Song, Amy, Rory and someone called Canton Everett Delaware III all receive invitations to join the Doctor and find themselves in the Utah desert where the good Doctor is killed by someone wearing a 1960s style space suit. They subsequently learn that the Doctor also invited himself to the event - a younger version of himself no doubt knowing what was about to happen. The invitation referred to Space 1969 though no one quite knows what that that is all about and just who is Delaware, who leaves just as soon as he arrives. The others travel to 1969 Washington where the TARDIS lands in the oval office where a startled President Nixon has been briefing a younger Delaware on a series of mysterious phone calls he's been receiving. River discovers an intricate web of tunnels and it is clear that aliens are on Earth.