Carnival of Monsters is the second serial of the tenth season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts on BBC1 from 27 January to 17 February 1973. In the serial, set on the planet Inter Minor, the alien time traveller known as "The Doctor" (in their third incarnation, played by Jon Pertwee) and his travelling companion Jo Grant (Katy Manning) are trapped inside a miniscope, a device used by the showman Vorg (Leslie Dwyer) to shrink life forms and put them on display for entertainment. It is the first serial since The War Games (1969) in which the Doctor is allowed to pilot the TARDIS completely under his own control. Plot The TARDIS misses Metebelis Three and materialises on the SS Bernice, a ship that suddenly disappeared while travelling the Indian Ocean. Being repeatedly arrested as stowaways, the Third Doctor and Jo find out that ship's occupants keep repeating their actions, having no recollection of earlier encounters. The pair escape from the ship through a strange hatch plainly visible to them both but ignored by the crew and passengers. The Doctor and Jo venture through the circuitry of some sort of giant machine and arrive at marshlands. They soon discover that they are not outside but are still inside the machine. Chased by Drashigs, huge swamp-dwelling carnivores, they escape back into the circuitry. Here, the Doctor realises that they have materialised inside the compression field of a Miniscope, a machine that keeps miniaturised groups of creatures in miniaturised versions of their natural environments. The Time Lords have banned such machines, but apparently one escaped. The Drashigs break into the circuitry and the Doctor and Jo flee back to the ship. They are separated in the confusion as the crew defend against the Drashigs. The events inside the miniscope are intercut with events involving its owners, travelling showman Vorg and his assistant Shirna, who have just arrived at the planet of Inter Minor but are suspected of being spies and refused entrance by a tribunal. The tribunal learns that objects removed from the machine soon return to their normal size when Vorg extracts a foreign object stuck in the circuitry – actually the TARDIS – from the machine. Two of the tribunal members, Kalik and Orum, dissatisfied with the leadership of their planet, plot to let the Drashigs escape from the