- Broadcast: 12 April 2008
- Viewers: 9.04m
- Availability: DVD: Series 4 Volume 1
The Doctor takes Donna to her first alien world – but the Ood-Sphere reveals some terrible truths about the human race.
Written by Keith Temple
Directed by Graeme Harper
The Doctor – David Tennant
Donna Noble – Catherine Tate
Mr Halpern – Tim McIinnerny
Solana Mercurio – Ayesha Dharker
Dr Ryder – Adrian Rawlins
Commander Kess – Roger Griffiths
Mr Bartle – Paul Clayton
Ood Sigma – Paul Kasey
Rep – Tariq Jordan
Solana: "Ood, you dropped something."
Donna: "It’s weird, but being with you, I can’t tell what’s right and what’s wrong anymore."
The Doctor: "It’s better that way. People who know for certain tend to be like Mr. Halpen."
Donna: "Well do something. You’re the one with all the tricks. You must have met Houdini."
The Doctor: "These are really good handcuffs."
Donna: "Well I’m glad of that. I mean, at least we’ve got quality! "
Donna: "Are you all the same?"
Ood: "I don’t know what you mean, Miss."
Donna: "Why are you calling me "miss"? Do I look single to you?!"
The Doctor: "Oh, I’ve sort of got a song of my own thanks."
Ood Sigma: "I think your song must end soon."
The Doctor: "Meaning?"
Ood Sigma: "Every song must end."
This episode takes place in the year 4126.
The Ood were last seen in The Impossible Planet/The Satan Pit.