Doctor Who

Season 18, Episode 28

Episode Title: Logopolis (4)

Air Date: 1981-03-21

Overview:

With the universe collapsing, the Doctor forms an uneasy alliance with the Master to save it. In case all does not go well, the Watcher takes the Doctor's companions to a safe place, but his plans for them don't stop there. The one hope for all lies back on Earth.