Doctor Who: The Ark

The TARDIS arrives some ten million years in the future on a giant spaceship carrying all the Earth's surviving plant, animal and human life (much of it miniaturised and in suspended animation) on a 700 year voyage to a new home on the planet Refusis II. Dodo is suffering from a cold - an unknown affliction in this era - and as the human Guardians of the ship and their servant race the Monoids have no resistance, a plague breaks out.
The Guardians place the travellers on trial and Steven is forced to defend them against allegations that they spread the disease deliberately. Fortunately, the Doctor finds a cure. The TARDIS leaves the spaceship, which Dodo has nicknamed the Ark, only to arrive back there as it is approaching the end of its voyage. Partly as a result of the earlier plague, the Monoids have now grown strong and enslaved the humans.
They plan to make Refusis II their own but, with the help of the invisible Refusians, the Doctor is able to persuade the two races to live together in peace.

Directed by Michael Imison
Written by Paul Erickson, Lesley Scott
Produced by John Wiles
Executive Produced by
Original Music by Tristram Cary
Cinematography by
Film Editing by Noel Chanan
Costume Design by Daphne Dare

The Monoids, who have no visible mouths, are seen (apparently) eating through holes in their necks.

There are occasional lapses by Jackie Lane into the Cockney accent in which she rehearsed the story, before the production team were instructed by their superiors that it was unacceptable for a regular character in Doctor Who to speak in anything other than 'BBC English'

There is a wonderfully dramatic moment at the end of The Plague when the completed statue with its Monoid head is revealed for the first time.

There are sequences set in the Ark's kitchen in the third and fourth episodes where small pills are seen to be transformed into recognisable food items - such as vegetables and fruit - when dropped into bowls of water.