Queen Victoria is stranded with Maharaja Duleep Singh on a mysterious fort in the middle of the ocean.
The fort has been ravaged by storms since it was built. There are ghosts inside and there's something alien outside. It’ll do anything to get its release.
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The Aztecs: The Bride of Sacrifice premiered on BBC One in 1964 at 5:14pm BST, watched by 7.90 million viewers.
Inferno: Episode 5 premiered on BBC One in 1970 at 5:15pm BST, watched by 5.40 million viewers.
Shada (Online): Part Six premiered on BBC Online in 2003 at 12:00pm BST
The Doctor's Daughter premiered on SyFy (East Coast Feed) in 2008 at 9:00pm EDT
Energy of the Daleks premiered on Radio 4 Extra in 2015 at 6:00pm BST
Christian Brassington is 35 today - 2 credits, including Self in The Five(ish) Doctors Reboot(Misc)
Natalie Morales is 48 today - 2 credits, including Self in The Women of Doctor Who(Factual)
Rob David is 49 today - credited as Sam Garner in The Angels Take Manhattan
Danny Webb is 62 today - 3 credits, including Mr Jefferson in The Impossible Planet / The Satan Pit
Derek Crewe (died 2011 aged 65) would be 75 today - credited as Synge in The Sun Makers
Jeremy Wilkin (died 2017 aged 87) would be 90 today - credited as Kellman in Revenge of the Cybermen
Aubrey Richards (died 2000 aged 79) would be 100 today - credited as Professor Parry in The Tomb of the Cybermen
John Spadbury (died 2014 aged 83) - credited as Cyberman in The Invasion
Desmond Cullum-Jones (died 2002 aged 77) - 2 credits, including Worker in The War Machines
Fulton Mackay (died 1987 aged 64) - credited as Dr. Quinn in Doctor Who And The Silurians