• Genre: Science Fiction
• Director: Peter Grimwade
• Main Cast: Tom Baker, Matthew Waterhouse, Sarah Sutton, Janet Fielding, Anthony Ainley
• Release Year: 1981
• Country: UK
• Run Time: 25 minutes

Plot

In the third episode of the four-part story "Logopolis," the titular planet becomes the temporary home base of the Doctor (Tom Baker), who along with his companions Adric (Matthew Waterhouse), Lylla (Sarah Sutton), and Tegan (Janet Fielding), has been gathered by the Watcher (Adrian Gibbs) to prevent a total breakdown of the universe's structure. The instigator of this temporal outrage is the Doctor's old enemy, the Master (Anthony Ainley) -- who, this time, may have hoisted himself with his own petard. First telecast March 14, 1981, "Logopolis, Episode 3" was written by Christopher H. Bidmead. ~ Hal Erickson, All Movie Guide

Cast

• Tom Baker - The Doctor
• Matthew Waterhouse - Adric
• Sarah Sutton - Nyssa
• Janet Fielding - Tegan
• Anthony Ainley - The Master

John Fraser - The Monitor

Credit

Peter Grimwade - Director; Christopher H. Bidmead - Screenwriter