Lord Mestor's tyrannical reign vs. the Doctor's attempt to stop his genocidal plan to colonize the universe using genetically engineered slug eggs

Mestor forces Peri’s life as leverage, seizing the Doctor as he enters with his hands cuffed. The Doctor feigns willing cooperation, masking his revulsion toward Mestor’s plan, and deploys measured …

The Doctor confronts Mestor in the throne room with escalating threats, goading him into a reckless display of power that reveals the true horror of his mind-linking ability. When Mestor …

Azmael and the Doctor realize Mestor will inevitably take control of the Doctor’s mind and body unless they act immediately. Azmael proposes a desperate stratagem—a mind-link that could destroy Mestor’s …