Gunrunners are on Androzani Minor, supplying the rebellious android-builder Sharez Jek with munitions to help his attempts to return to power.
Part 6 of "The Armageddon Factor".
Part 4 of "The Armageddon Factor".
Part 2 of "The Armageddon Factor".
The Doctor and Romana trace the sixth segment to Atrios and the Doctor finally completes the Key. When the White Guardian arrives to claim the Key, the Doctor must decide its fate.
Part 2 of "The Power of Kroll".
On the planet Delta Magna, the Doctor is shot at while he attempts to get an accurate reading on the tracer. Meanwhile, Romana is abducted by the Swampies. The drama builds as Kroll, a giant squid-like creature, suddenly appears and starts to attack.
Part 4 of "The Pirate Planet".
Part 3 of "The Pirate Planet".
Part 2 of "The Pirate Planet".
The tracer has detected the second segment on Calufrax. On arrival, the travelers discover Calufrax and other planets have been 'jumped' for their mineral wealth by the planet Zanak. And the Doctor can't believe who is next on their list.
Part 4 of "The Ribos Operation".
Part 3 of "The Ribos Operation".
The TARDIS lands in 17th-century England, which is being stalked by a robotic death-like figure from behind a holographic wall.
Part 4 of "Horror of Fang Rock".
The Tachyon Generator has aged the Doctor into an old man, but he finds the truth behind the machine and uncovers a plot to take control of the Hive.
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