The Enterprise is heading for the Epsilon solar system. A suddenly approaching alien ship uses scanners so strong that all crew members including Data lose most of their personal memories, even names and ranks, yet retain their operational and language skills. The external communications are down and computer data banks have been selectively wiped. Some, including the ship's manifest, are altered, so as to make a Commander MacDuff Executive Officer (rather than Riker) and the Enterprise is on a crucial mission in a war the Federation had been conducting for years against the Lysian race. The alien ship has been destroyed, they assume by the Enterprise, although there's no battle damage. While crew members behave differently, failing their normal reference patterns, MacDuff volunteers for a memory therapy Dr. Crusher suggests, so he can pretend for it to fail and press on the attack on the Lysian headquarters, but the war logic doesn't quite add up.
Did You Know?
The episode won an Emmy Award for Outstanding Special Visual Effects. See more
When Ro arrives at Riker's quarters, interrupting him and Troi, she uses the chime, requiring permission for access. However, she was able to enter his quarters earlier without him even being there at all. See more
Now we are ready.
Captain Jean-Luc Picard
The question is... for what?
Star Trek: The Next Generation End Credits
Composed by Jerry Goldsmith
and Alexander Courage See more