Our favorite Android finds a worthy companion in Dr. Graves, one of the most brilliant beings in the galaxy. He has a masterful scientist, actually being the mentor of Data's creator, Dr. Soong. Unfortunately, his great career is about to end. He has an incurable disease that is fatal. In a comic, but touching scene, the old man insists that date refer to him as "Grandpa." They talk for long periods of time. The acerbic old goat is condescending and sarcastic and will not go gentle into that good night. He refuses to recognize the illness but it has obviously taken a foothold in his body. Things get interesting when Graves dies and his demise is announced by Data. From this point forward, Data changes completely. He becomes an android Graves. A hilarious scene is when they have the burial service and Data delivers a eulogy that is hilarious. However, the new android/Graves begins to become dangerous and could also be compromising Data's programming. Violence begins to dominate, not the seeking for knowledge that Grave's imagined, particularly when it comes to a young woman that he has raised and loved his whole life (a May/September situation). This whole episode is played with aplomb and is very entertaining.