Overview
After an encounter with the Master, an airline stewardess named Tegan Jovanka becomes an unwitting stowaway aboard the TARDIS as it travels to the planet Logopolis. There, the Doctor discovers that the Master's interference with the Logopolitans' advanced mathematics has unleashed a wave of entropy which threatens to consume the entire universe.
Cast
The Doctor
Adric
Nyssa
Tegan Jovanka
The Master
Aunt Vanessa
Detective Inspector
The Monitor
Security Guard
The Watcher (uncredited)
The Doctor
The Master (archive footage)