The Next Generation: Season 4 (1990-1991)
S04E08
Stardate: 44286.5 Year: 2367
During a routine mapping mission, the Enterprise discovers unusual readings on Alpha Onias 3. Riker commands an away team to the planet but, the team succumbs to a dangerous gas.
Broadcast: 12 November 1990
Format: Episode
Prod #: 182
Story Order: 359 | Correct Order: 190
