The Enterprise-D encounters a temporal rift that has devastating consequences for the history of the Federation when the ship’s predecessor falls through the rip and into the future.
| Air Date | 19 February 1990 |
| Production Number | 40273-163 |
| Stardate | 43625.2 |
| Gregorian Calendar Date | Friday, 07 January 2366 02:48:28 GMT |
| Primary Arc | House of Yar |
| Secondary Arc | Temporal Investigations |
| Tertiary Arc | Guinan |
| See It or Skip It | See It! |
| Previously on Star Trek | Order | Next Time on Star Trek |
|---|---|---|
| A Matter of Perspective | Chronological | The Offspring |
| A Matter of Perspective | Air Date | The Offspring |
| A Matter of Perspective | Production | The Offspring |
| The Measure Of A Man | Primary Arc | Legacy |
| Time Squared | Secondary Arc | Captain’s Holiday |
| Déjà Q | Tertiary Arc | The Offspring |
Bonus Arc: This begins the “Sela” arc, with the next episode being “The Mind’s Eye.”
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