The Doctor and Leela's rescue mission versus the Vardan invasion and Gallifrey's isolationist forcefield barriers

Faced with the futility of capturing the Citadel against superior Vardan-aligned forces, Leela and Nesbin admit defeat to their original plan. Nesbin despairingly outlines the impossibility of breaching Citadel defenses …

Inside the Panopticon’s restricted corridors, Andred and K9 encounter a lone guard while advancing their covert plans against the Doctor. Andred moves swiftly, targeting the guard with a disabling shot …