Lord Borusa's institutional maneuvering to maintain control while navigating the Doctor's schemes

The Doctor and Borusa engage in a tense standoff in the TARDIS swimming pool, where the Doctor urgently reminds the Chancellor of the catastrophic potential of Rassilon's artifacts—particularly the Great …

The Doctor seizes the moment with the Sontarans closing in by leveraging the labyrinthine service passage to scatter his companions. He sends Borusa, Leela, and Andred through separate doors, each …

With the Sontaran commander Stor now in the Panopticon and armed with the Great Key, the Doctor completes the construction of the Demat gun using Rodan under hypnosis. As the …