Star Trek: The Next Generation - 5x04 - Silicon Avatar

    Some of the crew are helping some people work on building a settlement on a planet, when the planet is attacked by the crystalline entity.  Most of the settlers and the crew survive the attack by hiding in a cave, where the entity seems to be unable to reach them.  An expert on the entity comes to interview the survivors.  She distrusts Data because he has survived contact with the entity a few times, and her son died on the planet that Data was created on.
    This was a good episode.  It doesn't start too well, since we get a bit of Riker hitting on some settler.  And it isn't very clear how satisfying the direction of the episode will be.  It's always uncomfortable to see characters being mean to Data.
    There are a few common threads to an earlier episode - In Theory.  Both this episode and that one dealt with characters trying to put deeper feelings into Data than were appropriate, and feeling bad as a result of the act.
    What makes this episode work is the end of it.  There's some hammy bits as Picard is amazed that they are communicating with the entity.  But when we see the entity destroyed as a result of Marr's actions, it's clear that she was out of line.  Since we aren't going to get to see her get into deeper trouble, it's a dark ending for Data to tell her that her son would not be made happy by her actions.