Crew members go on a survey mission to a seemingly uninhabited Earth-like planet where a mysterious alien presence sends them into a state of paranoid overdrive.

Kellie Waymire (Crewman Elizabeth Cutler)
Henri Lubatti (Crewman Ethan Novakovich)
Rey Gallegos (Crewman)
Porthos

• Enterprise has 82 crew members according to Trip.
  
• This is the first uncharted planet visited by Enterprise. It is also the first use of the Vulcan term Minshara-class planet, one which is suitable for humanoid life, and a pre-cursor to the future "M-class" planet.
  
• This is the first appearance of Crewman Cutler, the ship's entomologist.
  
• When Novokavich is transported to the ship, swirling debris is beamed up as well, fused into his skin.
  
• The crew is affected by tropolisine pollen; the psychotropic compound is known for its hallucinogenic effects.
  
• T'Pol uses the Vulcan nerve pinch on Mayweather to give him the inaprovaline injection.