Ep 7. The Dalek Invasion of Earth: The End of Tomorrow

In Classic Doctor Who season 2 episode 7, titled "The Dalek Invasion of Earth: The End of Tomorrow," the TARDIS lands in a deserted London in the year 2164, where the Doctor, Barbara, Ian, and Susan discover that the Daleks have invaded Earth and enslaved humanity. Along with a group of rebels, the Doctor and his companions must fight to save the planet and thwart the Daleks' evil plans.

The episode begins with the TARDIS materializing on what appears to be an abandoned street in London. After exploring the area, the Doctor and his companions soon discover that they have arrived in the year 2164, a time when Earth has long been under the control of the Daleks. The group soon encounters a band of human rebels led by a man named Dortmun, who informs them of the situation on the planet.

Dortmun explains that the Daleks have ravaged the planet, enslaving its people and using them as laborers to mine the Earth's core for a mysterious substance called Zlynn. The Doctor and his companions agree to help the rebels in their fight against the Daleks, and they soon make their way to the Dalek's central control hub, a massive structure located in the heart of London.

Once inside the control hub, the Doctor and his companions are confronted by a group of Daleks, but they are quickly able to subdue them using a device called a Dalek gunstick. They learn that the Daleks' ultimate plan is to drill deep into the Earth's core, causing the planet to collapse and creating a massive explosion that will wipe out all life on Earth. The Doctor realizes that the key to stopping the Daleks is to sabotage the drill, and he and his companions set out to do just that.

As they make their way through the Dalek's base, the Doctor and his companions encounter a number of challenges and dangers. They must evade patrols of Daleks, navigate through deadly radioactive areas, and even rescue Barbara after she is captured by the Daleks. But despite these obstacles, they ultimately succeed in reaching the drill and setting explosives to destroy it.

With the drill destroyed, the Daleks' plans are thwarted, and the Doctor and his companions are able to escape the base before it explodes. But even as they celebrate their victory, they realize that the war against the Daleks is far from over, and that they must continue to fight to free Earth from their grip.

"The Dalek Invasion of Earth: The End of Tomorrow" is a thrilling episode of Classic Doctor Who that sees the Doctor and his companions in a desperate battle against one of the show's most iconic villains. With its tense action, sharp dialogue, and strong performances, this episode is sure to keep viewers on the edge of their seats from start to finish.