Night Terrors

Star Trek: The Next Generation  Season 4 Episode 17

Air Date: 3/18/1991

Stardate: 44631.2 When Enterprise goes to the rescue of a science vessel adrift for days, they find themselves in the same dilemma. Their trapped state is worsened by the fact that they are being "dream sleep" deprived, which they know can cause their deaths, and has caused all but one of the science vessels crews’ deaths. An unaffected Troi becomes the key to their salvation.