The Ark
Doctor Who: Season 3, Episode 26
The Doctor, Steven and Dodo dramatically arrive on a giant spaceship that is millions of years in the future. It's job is to try to transport the last humans away from the doomed Earth.
Show: Doctor Who
Writers: Paul Erickson and Lesley Scott
Director: Michael Imison
Air date: March 5, 1966
First broadcast: 5 March 1966