Holy expletive! Nanites have often appeared as creations of uncontrollable evil in science fiction, but this episode employed them in a horrific way I had never seen or contemplated. The concept of nanites repairing damage being done in tissue-damaging "enhanced interrogation" conducted by a runaway computer program looking for information the victims did not have called to mind the punishment of Prometheus. Talk about being caught between a rock and a hard place.
Still, the nanites saved the day by enabling Dutch to "fly," unprotected by such niceties as a spacesuit, from the derelict ship back to Lucy. Bit of a stretch, there, I thought.
I like the "crush" Lucy has on John. She wouldn't violate quarantine protocols for Dutch; but when Dutch said John was in trouble, Lucy popped that hatch right open. "No favorites, my ass!"