The Doctor deduces that the freighter is a slave ship loaded up with Tharils to be sold as time machine components, but the immense weight of Rorvik's damaged ship, designed to contain the Tharils, is now collapsing the fragile void of the micro-universe in which they're all stuck, pulling everything inside ever closer. Written by
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[aiming his gun
Time's run out for you. Doctor.
[standing next to the MZ canon
Please. Please. Just let the Doctor go. I don't know what these levers do, but it's pointing in your direction.
Don't touch anything, you poisonous child! Who is this boy?