The Master steals a small red model aeroplane from the High Council of the Time Lords so they send the Doctor and Jo to the Planet of the Blind Mime Artists to get it back.

They meet some Human colonists who find life on the planet so dull they've perfected the art of open-air mud wrestling, a bunch of intergalactic miners who can't understand how they came last in a Build-Your-Own Godzilla competition, and a squeaky midget who lives in a wall safe.

When the quiet blinky ones take Jo hostage, the Doctor must negotiate for her freedom…… anyone for Charades?