Ep 3. A Town Called Mercy

The show Doctor Who (2005) season 7 episode 3, titled A Town Called Mercy, follows the adventures of the Eleventh Doctor, portrayed by Matt Smith, and his companions Amy Pond, portrayed by Karen Gillan, and Rory Williams, portrayed by Arthur Darvill, as they arrive in the American Wild West in the late 19th century. The episode is written by Toby Whithouse and directed by Saul Metzstein.

The Doctor and his companions arrive in a small town called Mercy, which is being terrorized by a mysterious cyborg called the Gunslinger, who demands that the town turn over a fugitive scientist named Kahler-Jex, portrayed by Adrian Scarborough, who has taken refuge in the town. The Doctor decides to help the townspeople, but he soon discovers that Kahler-Jex is a morally ambiguous figure who has committed terrible atrocities in the name of science.

As the Doctor tries to determine how to resolve the conflict between the Gunslinger and Kahler-Jex, he comes into conflict with the town's marshal, Isaac, portrayed by Ben Browder, who is determined to protect his town at all costs. Meanwhile, Amy and Rory find themselves caught up in the town's struggles, and must find a way to help the people of Mercy without getting caught in the crossfire.

The episode features the kind of high-stakes action and suspense that Doctor Who is known for, as the Doctor and his companions struggle to find a way to bring peace to a troubled town. The setting of the Wild West provides a unique backdrop for the story, and the conflict between the Gunslinger and Kahler-Jex raises thought-provoking questions about violence, revenge, and the pursuit of justice.

Overall, Doctor Who (2005) season 7 episode 3, A Town Called Mercy, is an exciting and thought-provoking installment in the series that will entertain and engage viewers of all ages. With its blend of action, suspense, and science fiction, it is a must-see for anyone who enjoys thrilling storytelling and bold, imaginative ideas.