"The Echo of the Forgotten Star": Phlox and Tucker are sent below the surface of Mauncoris to try to talk a friend and mentor of Tucker's into leaving her self-imposed 10-year exile underground. Once a brilliant engineer, she hides herself from the light after an experimental energy source she was working with malfunctioned, leading to the deaths of her entire team and their families.
Next episode: "Sui Generis" https://en.wikipedia.org/wiki/Sui_generis
Next episode: "Sui Generis" https://en.wikipedia.org/wiki/Sui_generis