The escalating conflict of the unknown deadly disease spreading through Moonbase and those affected by it.

Jamie’s frantic screams wake Polly, who returns to Sickbay to find a Cyberman abducting a patient. The creature’s metallic, faceless form—tubes snaking from its head, its mechanical precision—is unmistakable, yet …

In a moment of forced camaraderie, Polly offers Hobson sugared coffee as a gesture of conciliation, unwittingly setting in motion the event that cracks the case wide open. Hobson accepts …