Ep 11. Full Circle: Part 3

The episode "Full Circle: Part 3" is the eleventh episode in the eighteenth season of Classic Doctor Who. The season was first broadcasted between 30th August 1980 and 21st March 1981. The episode is a science-fiction television series and follows the adventures of the Fourth Doctor, portrayed by Tom Baker.

The episode begins with the Doctor and his companions, Romana and Adric, exploring the planet Alzarius. They are trying to find a way to escape the planet as time and space have been distorted by the strange forces at play. The Alzarians have discovered a way to travel through the mist on the planet, which they believe is a gateway to their mythical homeland, Terradon.

As the Doctor and his companions try to find a way to fix the distortions, they discover that the mist is not a gateway to another planet, but a barrier between two parallel universes. The Alzarians are actually the descendants of a lost spaceship, and the whole planet is a self-contained ecosystem designed to keep them alive.

The Doctor realizes that the distortions are caused by a process called "mistfall" which occurs every fifty years when the planet's orbit coincides with the nearest star. The Alzarians are unaware of this, as their culture has been stuck at a pre-industrial level for generations. The Doctor explains to them that the mistfall is a natural event caused by the planet's orbit and that they need to prepare for it to avoid a total ecological collapse.

However, as the Doctor tries to convince the Alzarians to take action, he faces opposition from the leader of the tribe, Varsh, who believes that the Doctor and his companions are the cause of all the trouble. As the mistfall draws near, Varsh attempts to sabotage the Doctor's plans, which puts everyone's lives in danger.

The episode is full of suspense and action, as the Doctor and his companions try to stop Varsh's sabotage attempts and help the Alzarians prepare for the mistfall. The tensions between the Doctor and Varsh continue to rise as the mistfall draws near, with the whole planet set to be destroyed if they fail.

As the mistfall begins, the action intensifies, and the Doctor and his companions find themselves trapped in a dangerous and volatile environment. With time running out, they must do everything they can to prevent a disaster and get off the planet before it's too late.

Overall, "Full Circle: Part 3" is a thrilling episode that showcases the iconic characters and innovative storytelling that made Classic Doctor Who a beloved science-fiction television series. Fans of the show will appreciate the tense plot, exciting action sequences, and deep character development that make this episode a must-see for any Doctor Who fan.