Doctor Who - Season 16 - (1978-79) - 26 Episodes torrent

The Key to Time is the umbrella title that links all six serials of the sixteenth season of Doctor Who and was broadcast from 2 September 1978 to 24 February 1979. The arc was originally conceived of by producer Graham Williams, who had proposed it as part of his application for the producer's job in 1976. The name refers to the powerful artifact whose segments the Doctor, Romana and K-9 are searching for during the season.

A figure calling himself the White Guardian commissions the Doctor and K9, assisted by a new companion, the Time Lady Romana, to find the six segments of the Key to Time, a cosmic artifact resembling a perfect cube that maintains the equilibrium of the universe. Since it is too powerful for any single being to possess, it has been split into six different segments and scattered across space and time, disguised by the raw elemental power within them into any shape or size. However, since the forces balancing the universe are so upset, the White Guardian needs to recover the segments of the Key to stop the universe so that he can restore the balance.

The White Guardian also warns the Doctor of the Black Guardian who also wishes to obtain the Key To Time for his own purposes. In the final episode, the Black Guardian, disguised as the White Guardian, attempts to take the Key from the Doctor. However, the Doctor sees through the figure's charade and orders the segments of The Key to Time to once again become scattered across all of time and space, bar the sixth, which he reinstates as Princess Astra. Afterward, the Doctor decides to install a device called a randomizer into the TARDIS' navigation system for a period of time to make his following voyages unpredictable to evade the Black Guardian.

The six segments:

1. The first segment is disguised as a lump of Jethryk on the planet Ribos.
2. The second is the planet Calufrax, shrunk to miniature size by the space-
hopping pirate planet Zanak.
3. The third is the Great Seal of Diplos, which has been stolen by a criminal
of that planet.
4. The fourth is part of a statue on the planet Tara.
5. The fifth has been consumed by the squid Kroll, causing it to turn into a
gigantic monster.
6. The final segment is a female humanoid – Princess Astra.

Tom Baker continued his role as The Fourth Doctor, and saw the introduction of Romana played by Mary Tamm. This season was the only one to feature Tamm as the first incarnation of Romana, as the second incarnation, played by Lalla Ward, began her run in the first serial of the next season (Destiny of the Daleks).

Episode List:

1. The Ribos Operation - 4 Episodes

Synopsis: The Doctor is recruited by the White Guardian to seek the six
segments of the Key to Time. The quest for the first segment takes them to
Ribos, a medieval planet that galactic confidence trickster Garron is trying
to sell to the Graff Vynda-K.

2. The Pirate Planet - 4 Episodes

Synopsis: The quest for the second segment takes them to the planet Zanak,
which has been hollowed out and fitted with hyperspace engines, allowing its
insane half-robot Captain to materialize it around other smaller planets and
plunder their resources.

3. The Stones of Blood - 4 Episodes

Synopsis: The quest for the third segment takes them to 1970s Earth, where the
travelers have to contend with stone circles, Druidic rituals, and a not-so-
mythical goddess known as the Cailleach.

4. The Androids of Tara - 4 Episodes

Synopsis: The quest for the fourth segment takes them to the planet Tara. The
Fourth Doctor and Romana find themselves embroiled in the political games of
the planet Tara, where doubles, android or otherwise, complicate the
coronation of Prince Reynart.

5. The Power of Kroll - 4 Episodes

Synopsis: The quest for the fifth segment takes them to the third moon of
Delta Magna, caught in the middle of a dispute between the crew of a Methane
Refinery and the natives (known as 'Swampies').

6. The Armageddon Factor - 6 Episodes

Synopsis: The quest for the sixth and final segment takes them to Atrios, a
world caught in a perpetual, stalemated war with its planetary neighbor Zeos.
But the Black Guardian is closing in.