Doctor Who (1963) Season 17 Episode 4 Destiny of the Daleks (4)

The Doctor and Romana arrive on an alien planet in search of the third missing segment of the Key to Time. They find the planet is controlled by the Daleks, who have been in hibernation for centuries. The Daleks - who were last seen in the Fourth Doctor's season 12 finale - have awoken to find their creator, Davros, is also on the planet. However, the Daleks are unable to activate him as they have forgotten the key to his life support system.

The Doctor is not content with the prospect of a Dalek army reawakening, so he and Romana set off to find the segment while also trying to thwart the Daleks' plans. Along the way, they encounter the Movellans, a race of emotionless androids who are also searching for the Key to Time. The Movellans plan to use the key to defeat the Daleks, but the Doctor is skeptical of their intentions.

As the Doctor and Romana negotiate a complex series of caves, they must rely on their wits to evade the Daleks and their advanced technology. When they finally retrieve the segment, they are captured by the Daleks, and a tense standoff between the Doctor and Davros ensues. The Doctor must come up with a plan to foil the Daleks and prevent Davros from having his revenge on his robotic creations.

Destiny of the Daleks (4) is a thrilling episode in the long-running Doctor Who franchise. It is notable for featuring the return of the Daleks after a two-season absence and introducing the Movellans, a new alien race that would not be seen again in the series. The episode is written by Terry Nation, the creator of the Daleks, and features the Fourth Doctor, played by Tom Baker, in his trademark scarf and hat. The episode's strong writing, suspenseful storyline, and dynamic performances make it a must-watch for fans of the series.