On a mission to salvage an endangered planet, the Enterprise is visited by Dr. Tainer and her husband, two scientists whose plan may save the planet. The first chance she has to speak to Data privately, Tainer reveals herself to be the ex-wife of Dr. Soong and co-designer of Data and Lore. Though he is skeptical at first, Data finds evidence that she may be who she claims to be, and begins to spend time with her in an effort to find out about his creation and development.
