A Town Called Mercy (TV story)

 was the third episode of the seventh series of Doctor Who produced by BBC Wales.

It was the first televised since 1966's The Gunfighters. Across all media, however, it was merely one of many westerns, and wasn't even Matt Smith's first foray into the genre, since he had read 2010's original audio, The Runaway Train. That story even featured Amy, though not Karen Gillan, so it was at least Amy's second trip to this era.

From a production standpoint, this story was notable for being the first episode of BBC Wales whose visual effects were not credited to The Mill. Although various episodes had, in the past, required help from other companies, The Mill had always managed to retain the main "Visual Effects" credit. The most notable recent example of this was The Doctor, the Widow and the Wardrobe, where some of the effects were done by Space Digital. There, Space received an "Additional Visual Effects" credit. Here, however, they become the first company other than The Mill to get the main VFX credit since Rose.

Synopsis
A tale of war, betrayal and vengeance, converging on one small town in the Old West – a town under siege. Just crossing the boundary line summons a not-quite-human killer from the desert heat haze. The Doctor finds himself not just in the crossfire of an ancient conflict between a cyborg killer and an alien fugitive, but he is also faced with a moral dilemma: which side should he take? Who really is the victim here? This time though, the Doctor doesn’t seem to care...

Has the Time Lord been alone too long? Have the long days of travelling between his adventures with the Ponds taken their toll? Because for one of the few times in his long life, the Doctor takes a gun...

Plot
The episode begins with a woman narrating about a story she was tolled when she was a girl by her grandmother about a man who could never die and was weighed down by the things he had seen.

Kahler-Mas is running away from the Gunslinger and finally gets caught. There is one more person left on the Gunslinger's list: the Doctor.

The TARDIS materialises in a town on the American frontier called Mercy. There are several odd things about the town including a stange stone and wood boundry line surrounding the town. More bizzare is the presence of electricity wich shouldnt be around for ten more years. The trio enter the town unaware the Gunslinger is watching them. The trio take note of the townsfolk's hostile stares and enter the Saloon. When the Doctor introduces himself the patrons become hostile and demand to know if the Docotor is an alien. When he admits it, the three are grabbed and dragged out of town and thrown over the boundary line and held at gunpoint. Before they ask what is going on a man spots the Gunslinger approaching and prepare for the worst.

A shot is fired from the crowd and the town Marshal, Isacc, appears and tells the people to let Doctor and his friends back in, pointing out the Doctor is not the one the creature wants. The Gunslinger departs when the trio return inside the boundary. At Isacc's office, the Marshal explains the situation; three weeks ago the boundary appeared along with the Gunslinger who demanded they hand over the "Doctor". Though he has not killed anyone the creature has stopped supplies and reinforcements enetering the town and the town is slowly starving to death. The Doctor asks to meet the being the Gunslinger is after and the alien who was hiding in the cells introduces himself as Kahler-Jex. The Doctor is delighted to meet Jex explaining the Kahler are a race renowned for their technological expertise.

Jex explains his ship crashed out in the Desert some years ago and he was rescued by the townsfolk who took him in has one of their own. Since then he became the town Doctor and cured an outbreak of Cholera has well has use the remains of his ship to give the town electricity. The Doctor is curious as to why the Gunslinger is after him but Isacc defends his friend saying Mercy is a town of second chances and he is also angry that the townsfolf are thinking of turning their friend over to the creature. The Doctor decides to use the Tardis to help Jex escape but first they must engage in a little slight of hand to get past the Gunslinger.

Isacc dressed in Jex's hat and coat along with Rory run off in one direction while the Doctor takes a horse in the other to get to the Tardis. The Gunslinger takes the bate and chases after the two men but curiously holds back on firing when his systems warn of the high risk of hitting Rory. In town Amy talks with Kahler Jex who notes she is a mother and cryptically mentions he is something of a father.

In the desert the Doctor finds the power cables from Jex's ship and follows them despite the original plan. The Gunslinger catches up to Roary and Isacc and pins them down behind a rockface.

The Doctor finds the Kahler ship hidden but undamaged unlike Jex's claim. After some effort he manages to open it but trips the ships alarm wich rings throught the valley alerting Jex and the Gunslinger who breaks off his pursuit of the two men. In town Jex is panicking because the Doctor has gone against the plan. At the ship the Doctor enters and manages to override the defence system and asks the computer what it knows about the Gunslinger. Unfortunatly the ship does not understand the term so the Doctor tries a different approach and ask it about its crew. His request brings up logs detailing horrific experiments that the Doctor watches in silent shock has he listens to Jex camly detail the events as his victims scream in the background.

Back in Mercy Amy finds herself staring down the barell of gun held by Jex who has figured by now the Doctor has learnt some things about him that the townsfolk won't understand or forgive. He is going to flee and take Amy with him has a hostage since the Gunslinger's programming forbides him from harming civilians unless the situation is extreme. The escape is thwarted by the return of Roary and Issac who demand answers.

In the desert the Doctor runs into his own serving of trouble when he the leaves the ship to come face to face with the Gunslinger. He manages to get the creature to stand down by revealing he knowes what Jex did. The cyborg lowers his weapon slightly and the Doctor realising he is dealing with a vicitm rather than a monster pleads with him to spare the town and let Jex be brought to trial. The enraged cyborg refuses but reveals he hasn't personaly gone after Jex because he dosent want to harm the civilians who get in the way. He leaves but warns the Doctor the next person who tries to leave the town will be killed unless the Kahler is handed over.

At the Marshell's office Jex tries to wave off his actions as a moment of panic but the Doctor returns and accuses Jex of being a lier and murderer. He explains to Issac and the Ponds that the Gunslinger is a cyborg created by Jex and a team of scientists. That they took unsuspecting volunteers on the pretext of military training and experimented on them and those that did not die were turned into weapons. Rather than deny his action Jex admits and even defends them explaining Kahler was suffering a devestating nine year war which had already decimated half the planet. The Kahler authority ordered the scientists to create weapons that could end the war and they did. In under a week the cyborg army defeated the enemy before deactivating. Unfortunatly the Gunslinger didn't. As far as Jex can guess he was damaged in battle leading to his orginal Kahler personality returning and disregarding his pre-programmed orders. Since then he has has hunted down and killed the people responsible for turning him into a monster and now he wants to finish it with Jex.

Cast

 * The Doctor - Matt Smith
 * Amy Pond - Karen Gillan
 * Rory Williams - Arthur Darvill
 * The Gunslinger - Andrew Brooke
 * Kahler-Jex - Adrian Scarborough
 * Kahler-Mas - Dominic Kemp
 * Sadie - Joanne McQuinn
 * The Preacher - Byrd Wilkins
 * Abraham - Garrick Hagon
 * Isaac - Ben Browder
 * Dockery - Sean Benedict
 * Walter - Rob Cavazos

Story notes

 * Adrian Scarborough (Kahler Jex) previously played Rupert Van Thal in BFA: The Boy That Time Forgot.
 * Garrick Hagon (Abraham) previously played Ky in DW: The Mutants.

Ratings
to be added

Filming locations

 * Mini Hollywood, Spain
 * Texas Hollywood, Spain

Production errors
to be added

Continuity

 * The Doctor, in his first incarnation, has previously visited the American Old West. (DW: The Gunfighters)
 * In the previous episode, Dinosaurs on a Spaceship, the Doctor states he has a Christmas list. He again makes reference to one here, asking if anyone has been peeking at it.
 * The Doctor is able to understand a horse. He had spoken with a cat during the events of The Lodger.
 * Once again The Doctor dons a Stetson, wearing one in The Impossible Astronaut and then once again in Closing Time and subsequently The Wedding of River Song

DVD releases
to be added

Blu-ray releases
to be added