Nyssa's internal conflict between familial loyalty to her father's memory and her moral duty to stop the Master's sabotage

The Master’s voice calls out to Nyssa from the shadows of a ruined Logopolis street, repeating her name in a cadence that forces her to listen. She detects his precise …

The Master weaponizes Adric’s capture by forcing Nyssa to choke him with an electro-muscular constrictor, exposing the young Alzan to sudden violence. When Tegan lunges to intervene the Master exploits …