The Doctor vs Captain Striker conflict over the true nature of 'Enlightenment' and the Eternals' parasitic existence

Striker reveals his intent to destroy a rival vessel by sailing dangerously close to a planetary marker. The Doctor warns of the peril but Striker proceeds, commanding the crew to …

Striker enters the yacht's wheelhouse where the Doctor has been examining the vessel's controls. His casual inquiry about the TARDIS masks deeper calculations as he assesses the Doctor's reaction. Feigned …

Striker attempts to distract the Doctor by pointing out the competing vessels outside, but the Doctor redirects the conversation to the heart of the matter. The Doctor demands to know …