Location: Utah, Washington D.C., Florida Date: 2011, 1969 Enemies: The Silence 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 wh... (more)at is the relevance of their only other clue: 'Space 1969'? Their quest lands them - quite literally - 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.

Adam Napier, Alex Kingston, Chukwudi Iwuji, Henrietta Clemett, Kieran O'Connor, Mark Griffin, Mark Sheppard, Marnix Van Den Broeke, Nancy Baldwin, Stuart Milligan, Sydney Wade, William Morgan Sheppard