Turlough's internal conflict between his loyalty to the Doctor and his obedience to the Black Guardian's control, culminating in a mental struggle for self-determination.

Turlough's frustration boils over as the TARDIS's malfunction leaves him stranded and uncertain. In a tense exchange, he demands the Doctor provide direction, sensing the depth of the threat from …

Turlough lies helpless in the sickbay as the Headmaster steadily dismantles his resistance, appealing to his guilt and unmet obligations. The conversation escalates from moral quandary to outright control as …

Trapped beneath the crystal’s mind control, Turlough is driven to confess his loyalty to kill the Doctor. As the crystal demands an escape route, Turlough struggles against its hold, desperate …

Turlough works against the Terminus station’s restrictive controls to override a heavily warned panel, exposing hidden circuitry beneath. He connects with a live wire despite Tegan’s concern about the source …