You are watching Doctor Who: Logopolis the movie produced in United Kingdom belongs with duration 100 Min in Category Science Fiction,Adventure,Drama,. broadcast at streamingjoy.com , by [ BBC ] 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..