Logic, my dear Zoe, merely enables one to be wrong with authority.
The Doctor and Jamie arrive on a spaceship and are attacked by a servo robot. Contacting a nearby space station, simply known as "the Wheel", they are rescued, but needless to say, more peril awaits.
The spaceship also releases some Cybermats which travel to the station and begin to prepare for an attack by the Cybermen. Meanwhile the Doctor and Jamie meet the crew, including a young teenage mathematical genius called Zoe Heriot. Most of the rest of the crew are being hypnotically controlled by the Cybermats, and the Doctor sends Jamie and Zoe to fetch a piece of phlebotinum from the TARDIS which will allow him to beef up the station's laser enough to destroy the approaching cyber-fleet.
Zoe stows away on the TARDIS, but is discovered by the Doctor who asks if she really wants to come with them, and shows a clip of a previous adventure to demonstrate the dangers. She still seems keen, so they agree to let her come along.
- Action Figure Speech
- Auto Kitchen: The spaceship that the Doctor and Jamie spend Episode 1 on has one.
- Broken Aesop: The Doctor's "Logic, my dear Zoe..." line is intended to show that Zoe is too sure of herself, and logic won't necessarily lead one to the right answer. The problem is that her reasoning isn't wrong, and logic has led her to the right answer: the Silver Carrier's arrival was not an accident.
- But This Is Ridiculous!: Jamie, on discovering that people in the future eat cube-shaped Food Pills: "I've heard of a square meal, but this is ridiculous!"
- Custom Uniform: Zoe's jumpsuit is a different design from the other characters'.
- Dies Wide Open: How Jamie and Zoe find the body of Gemma Corwyn.
- Emotionless Girl: Zoe, in her first couple of episodes.
- Freak Out: Jarvis Bennett is the latest in a series of base officers to go nuts during this season.
- Freudian Slip: "We're all going to be killed shortly unless you switch over to sexual air supply" note
- Heroic Sacrifice: Gemma Corwyn
- Line-of-Sight Name: Jamie coins the long-running "John Smith" alias for the Doctor from a piece of medical equipment.
- Mathematician's Answer:
This Doctor friend of yours. Is he a scientist? Jamie:
He is in a way I suppose, yes. Zoe:
What's his speciality? Jamie:
His what? Zoe:
Well, is he a physicist, biochemist, astronomer, biometrician? Jamie: Yes, he is.
- Meaningful Name: The Cybermen are often referred to in titles by the word silver (the Silver Menace, Nightmare in Silver, the Silver Turk, and so forth). So what's the name of the spaceship they use to Trojan Horse their way aboard the Wheel? The Silver Carrier, of course.
- Sci-Fi Writers Have No Sense of Scale: The Cybermen's plan requires meteor showers — which they cause by blowing up distant stars.
- Space Clothes: Zoe's catsuits are fondly remembered by fandom.
- Tainted Veins
- Tin Can Robot: The servo robot in episode 1.
- You Keep Using That Word: The novelisation, and the narration in the soundtrack version, keep using 'capacitator', which isn't a word — the intention was probably 'capacitor'.
- Zeerust: Never mind Rose, Zoe was actually the first 21st century companion. A different, much groovier 21st century, featuring Space Clothes, Raygun Gothic, and Food Pills. Zoe probably played with jetpacks when she was a kid, it's just not mentioned...