Foreman: These new bosses, who are they?The episode begins with an aerial shot of 1930s New York that zooms in on the local Revue. Showgirls prepare for a performance while Tallulah, a showgirl, makes out with her boyfriend, Laszlo. As she heads out to the stage, we see Laszlo hear oinking noises from down the corridor, luring him into a dark storeroom. He's ambushed by a pigman and the opening title rolls.The TARDIS materialises beneath the Statue of Liberty. The Doctor and Martha walk out and take in the view of Manhattan, and Martha notes that the Empire State Building is still a work in progress. They find a newspaper and identify the date as 1st November 1930. The front cover also describes people going missing in the local Hooverville, leading the Doctor to investigate. Arriving in Central Park's Hooverville, the Doctor and Martha come across two people fighting over a loaf of bread. The fight is broken up by Solomon, the leader of the village. As if the symbolism wasn't obvious enough, he breaks the loaf in half and divides it among the two people. The Doctor and Martha introduce themselves to Solomon, who describes the plight of the people there in Hooverville.The scene cuts to the Empire State Building, where the construction is being managed by Mr. Diagoras, who is demanding that his workers go faster, despite the fact that they're on schedule and utterly exhausted. After a worker pleads for him to have pity, Diagoras directs him toward his masters from "out of town". As the elevator opens to reveal who they are, we see a Dalek flanked by two Pig Slaves. Diagoras explains how the worker is refusing to work any faster, causing the Dalek to order him taken away for "the Final Experiment" by the pigs.As the worker is taken downstairs by the pigs, the Dalek speaks with Diagoras and tells him that the Empire State Building must be completed in time for the "Gamma Strike".The scene cuts back to Hooverville. The Doctor asks Solomon about the disappearing people mentioned in the newspaper; he explains how people disappear during the night and that the police aren't interested so long as it's just homeless people. Mr Diagoras arrives in the village and offers work to the people there for a dollar a day that involves clearing out a collapsed tunnel in the sewers. Several people in the crowd, including the Doctor and Martha, volunteer.Whilst exploring the sewers, Solomon explains to the Doctor how Diagoras was just another foreman until a couple of months ago, but now it seems he's running most of Manhattan. As they speak, the Doctor comes across a green blob on the ground. He takes a look, noting that it isn't human in origin, then realises that the group has gone a mile into the sewer already and there's no sign of any collapsed tunnel.The scene cuts back to the construction site in the Empire State Building where Mr. Diagoras tells his workers that they are to attach four panels, pieces of Dalek casing, to the mast of the building. Again, he demands that they work unreasonably fast. The workers say that they can't work at night for fear of losing their grip from the cold and falling to their deaths, but Diagoras simply threatens to fire them if they refuse. After the workers have climbed up to fasten the panels to the mast, the Dalek from earlier arrives to speak with Diagoras. Diagoras reassures the Dalek that the mast will be finished on schedule. As the two look out at Manhattan the Dalek notes that, despite its perceived weakness, humanity has succeeded in building so much. After the Dalek mentions losing its planet in a great war, Diagoras says he is a war veteran himself, how he swore he would survive, no matter what, and that he would claim the city no matter what it takes."You think like a Dalek!" is the response of the Dalek, whom we learn in the next scene is Dalek Caan of the Cult of Skaro. The scene cuts down to a laboratory in the basement, attended by Pig Slaves working for the Cult of Skaro, who have arrived in 1930s New York after their Emergency Temporal Shift during the Battle of Canary Wharf. Dalek Sec orders Dalek Caan upstairs to bring Diagoras down to the basement. There, Diagoras attempts to thank Dalek Sec, but Sec orders him to cease talking and has the pig slaves take him away as he protests that he's on their side.Doctor, Martha, Solomon and a worker called Frank continue their search until they find a pigman sitting in a corner sadly. The Doctor promises to help him, but more violent pigslaves chase them to the surface, all but Frank making it. They emerge from a manhole in the theatre and Tallulah holds them at gunpoint. But surprise, it's just a prop, and after she explains that Lazlo is one of the people who've disappeared. The Doctor rigs a DNA scanner for the green blob, Solomon goes back to Hooverville to organize a militia and Tallulah and Martha engage in girl talk. Martha reveals that she's attracted to the Doctor.Finally we get back to the Daleks. Dalek Sec wants to combine his and Diagoras's DNA as part of the Final Experiment. The others protest this since humans are impure, but Sec points out that for all their impurity, there are millions of humans and only four Daleks left in existence. Dalek Sec's metal exterior opens up, and he absorbs a screaming Diagoras.To his horror, the Doctor finds that the DNA from the blob is Dalek. As Tallulah goes on stage Martha sees a pigslave watching the performance from the shadows. She chases after it but a different pigslave captures her, so the Doctor and Tallulah go after her into the sewers. They find the pigslave who was watching Tallulah, who turns out to be Lazlo; he may be a pigman but he escaped before the Daleks were able to destroy his mind. Doctor and friends spy on the Daleks, who separate Martha and the other prisoners: stupid ones become pig slaves, smart ones are sent to the lab. Lazlo, concerned for her safety, tells Tallulah to go home, then he and the Doctor slip in line behind Martha unnoticed. Once in the lab, they witness the results of the Final Experiment: Dalek Sec has become a Dalek-Human hybrid. A new life form is born. To Be Continued.
Diagoras: I think you can say they're from outta town.
Diagoras: Bit further than that.