Dr. Trenchard's betrayal and conspiracy with The Master to undermine Captain Hart and naval operations

Colonel Trenchard enters the Master's cell bearing a mysteriously procured box rumored to hold theatrical supplies, quickly revealing his complicity in the Master's liberation. The two men orchestrate a hasty …

The Doctor and Jo piece together the threads of deception after Smedley reports an officer stealing equipment and assaulting him. Jo recognizes the description as the Master, who should be …