Yes, we have a citadel, too. Where are we? Not even the guards can use it, only Seers. DOCTOR: And push. Captured. NAIA: For fuel. LEELA: The Oracle? More.
Plan: A: the citadel guards; Q: Who is pleased to have more subjects for their public executions? A: a Trog revolt; Q: What does the Doctor and Leela's capture spark? Summary: Capturing the Doctor and Leela, the citadel guards are quite pleased to have more subjects for their public executions, but it only fires up a Trog revolt instead.