Ep 27. Logopolis (3)

In Doctor Who season 18 episode 27, titled "Logopolis (3)," the Doctor and his companions continue their journey on the planet of Logopolis. The Doctor is still attempting to repair the TARDIS and is relying on the mathematical skills of the Logopolitan people to do so.

However, a mysterious figure known as The Watcher has been following the Doctor and his companions, causing them to become increasingly paranoid. The Watcher seems to be signaling danger, but the Doctor struggles to understand what it means.

Meanwhile, a new threat emerges as a powerful entity known as the Master makes his presence known. The Master seeks to steal the powerful knowledge of the Logopolitans and use it for his own sinister purposes. The Doctor and his friends must race against time to stop the Master before it is too late.

As the events unfold, secrets from the Doctor's past are revealed and the stakes become higher than ever. Will the Doctor and his companions be able to save the Logopolitans and thwart the Master's evil plans? Or will they succumb to the darkness that is closing in on them? Only time will tell in the thrilling conclusion of "Logopolis."