Doctor Who: The Best of The Third Doctor Season 1 Episode 7 The Three Doctors, Episode 3

In this episode of Doctor Who: The Best of The Third Doctor, entitled "The Three Doctors, Episode 3," the third incarnation of the Doctor, played by Jon Pertwee, continues to work with his previous two selves, played by William Hartnell and Patrick Troughton, to solve a dangerous puzzle and save the universe from destruction.

With the help of his companions, Jo Grant and Brigadier Lethbridge-Stewart, the Doctor ventures into a strange and mysterious world known as the Anti-Matter Universe, where he encounters a hostile race of beings known as the Omega's creations. Omega, a powerful and vengeful entity who once built the Time Lord's time machines but was believed to have been destroyed by his own creations, has returned to cause chaos and destruction in both the Anti-Matter and the regular universes.

As the Doctors work together to unravel the mystery of Omega's return, they must also confront their own flaws and weaknesses, as well as their different approaches to problem-solving. The Third Doctor's penchant for action and his scientific knowledge must come together with the first two Doctors' more cerebral and intuitive methods in order to defeat Omega and restore order to the universe.

Along the way, the Doctors also encounter a range of familiar faces, including the Time Lords of Gallifrey and the Daleks, each with their own agenda and motivations for wanting to stop Omega.

As the episode unfolds, the tension builds and the stakes get higher, with the Doctors facing increasingly difficult challenges and setbacks. But with each setback comes a new opportunity for them to use their combined knowledge and skills to overcome the obstacles in their way.

Ultimately, in a thrilling climax, the Doctors face off against Omega in a battle of wills and intellect, using all their knowledge and ingenuity to save the universe. In the end, they emerge victorious, having saved the day once again and proving that even across different regenerations, the Doctor always knows how to get the job done.

Overall, "The Three Doctors, Episode 3" is a thrilling and action-packed episode of Doctor Who that showcases the best of the Third Doctor and his companions, while also bringing multiple incarnations of the character together in a bold and ambitious storytelling feat.