Star Trek: The Next Generation - 4x14 - Clues

    While investigating a planet, the Enterprise encounters a wormhole.  Everyone, except Data, passes out.  When they come to, Data says that they've only been out for about 30 seconds.  Gradually, odd things crop up that suggest that they were actually out for a full day.
    I like this episode quite a bit, but this time through, I felt like the ending cheated a little.  I'm a little tired of all-powerful aliens manipulating things.
    But the mystery of the episode works out pretty well, even if we know what direction it's heading.  We know Data is lying - but we don't know why he's lying.
    Again, Guinan adds nothing of value to the episode.