Death in a Single Cell
"The Immunity Syndrome"
All life in an entire solar systemhas been annihilated. Who - or what - is responsible? A thing called The Destroyer, actually a gigantic single-celled amoeba-like organism that absorbs anything in its path. The Enterprise offiv=cers must find a way to reach its nucleus in order to obliterate the thing, and Mr. Spock ventures out in the shuttlecraft to oversee Kirk's plan.
