Ep 3. Spearhead From Space (3)

In Doctor Who season 7 episode 3 titled "Spearhead From Space," the Time Lord arrives on Earth in the middle of a meteor shower. Upon landing, he is found by a group of UNIT soldiers and taken to a hospital. The Doctor quickly realizes that strange things are afoot as people in the nearby town have been showing up dead with strange injuries.

Additionally, a mysterious group of men in black suits and sunglasses are seen sneaking around. The Doctor teams up with the newly appointed Brigadier Lethbridge-Stewart, head of UNIT, to get to the bottom of what's happening. Together, they discover that the strange injuries are caused by strange, plastic creatures that are taking over people's bodies.

As the Doctor and UNIT try to stop the invasion, they learn that the plastic creatures are being controlled by an even greater entity. The time traveler must use all his knowledge and skills to defeat the powerful force and prevent the aliens from taking over the planet.

Throughout the episode, viewers see the Doctor's quick wit and intellect at play as he navigates the complex situation. His chemistry with Lethbridge-Stewart also becomes a crucial part of the plot's development.

"Spearhead From Space" is a classic episode of Doctor Who that showcases the show's ability to mix science fiction, action, and humor. The introduction of the plastic creatures known as "Autons" in the episode would become a recurring villain in the Doctor's adventures. Fans of the series will appreciate the dynamic chemistry between the Doctor and his human allies as they attempt to save the world from extraterrestrial threats.