Data thinks he can use her amniotic fluid to synthesize a retrovirus.However, Worf—who is a massive proto-Klingon with an exoskeleton—is trying to break into sickbay to get at Troi.The is two light-years away from their intended position and adrift. They dock the shuttle manually and discover that main power is offline.
Before they can locate her, though, they need to fix the ship—a warp nacelle has malfunctioned.
Data’s scan determines that she’s turning into an amphibian—and she’s also been bitten by a Klingon.
When they reach the bridge, they find only the body of Ensign Dern at conn, who has been ripped apart by something with claws.
Worf—whose hair is coming out of its ponytail—comes after her and declares that he must be near her, going so far as to bite her.
They both report to sickbay, where Troi just gets colder and colder (and thirstier), and Worf has gone nonverbal—but when he does open his mouth, he sprays acid onto Crusher’s face.
Data finds 1011 life forms on board, all exhibiting the same DNA flux as Troi.