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 then Riker) and the Enterprise is on a crucial mission in a war the Federation would be 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... Written by
Did You Know?
47-reference: Riker says that he is reading 47 sentry pods around the perimeter of the Lysian central command. See more
In the first scene, where Data is playing chess with Counselor Troi, he uses the contraction "I've": "... particularly since I've already taken both of your rooks." For whatever reason, Data has a reputation for being unable to use verbal contractions. See more
Commander William T. Riker
[explaining Troi's visit in his quarters
We were just discussing the situation we're all in.
Ensign Ro Laren
Hm... good. Because I have a feeling that I used to be the jealous type.
References Lost in Space
Star Trek: The Next Generation End Credits
Composed by Jerry Goldsmith
and Alexander Courage See more