The week-long national syndication window opens for the 90th episode of Star Trek: The Next Generation. Whoopi Goldberg, John Vickery (Babylon 5) and Brian Tochi (Space Academy) guest star. 
Stardate 44631.2: The missing starship Brittain is found by the Enterprise, but Riker and an away team find that the entire crew of the Brittain went berserk and murdered one another, leaving a single survivor – a Betazoid who can’t speak and whose telepathic “ramblings” to Troi are puzzling. When the Enterprise is immobilized by a dangerous natural phenomenon, no one suspects that the survivor’s riddles may have some meaning, and members of the crew begin hallucinating slowly edging toward the same kind of madness that drove the Brittain’s crew to kill themselves…
teleplay by Pamela Douglas and Jeri Taylor
story by Shari Goodhartz
directed by Les Landau
music by Ron JonesCast: Patrick Stewart (Captain Jean-Luc Picard), Jonathan Frakes (Commander William Riker), LeVar Burton (Lt. Geordi La Forge), Michael Dorn (Lt. Worf), Gates McFadden (Dr. Beverly Crusher), Marina Sirtis (Counselor Deanna Troi), Brent Spiner (Lt. Commander Data), Rosalind Chao (Keiko), John Vickery (Andrus Hagan), Duke Moosekian (Lt. Gillespie), Craig Hurley (Ensign), Brian Tochi (Ensign Lin), Lanei Chapman (Ensign Rager), Colm Meaney (O’Brien), Whoopi Goldberg (Guinan), Deborah Taylor (Captain Zaheva)
LogBook entry by Earl Green