Nanites threaten a once-in-a-lifetime experiment being conducted aboard the U.S.S. Enterprise in this, the season three opener.
| Air Date | 25 September 1989 |
| Production Number | 40273-150 |
| Stardate | 43125.8 |
| Gregorian Calendar Date | Tuesday, 22 June 2365 12:20:00 GMT |
| Primary Arc | Artificial Intelligence |
| Secondary Arc | House of Crusher |
| Tertiary Arc | Guinan |
| See It or Skip It | See It! |
| Previously on Star Trek | Order | Next Time on Star Trek |
|---|---|---|
| Shades of Grey | Chronological | The Ensigns of Command |
| Shades of Grey | Air Date | The Ensigns of Command |
| The Ensigns of Command | Production | The Survivors |
| Contagion | Primary Arc | The Ensigns of Command |
| Samaritan Snare | Secondary Arc | The Bonding |
| Q Who | Tertiary Arc | Booby Trap |
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