The ninth Star Trek
film. Summary (Spoilers!) at bottom.
Directed by Jonathan Frakes, written by Rick Berman and Michael Piller Released in 1998, rated PG.
Some info from imdb.com
Summary (Contains spoilers)
During a diplomatic mission, the USS Enterprise-E receives a communication that Commander Data has gone berserk during an observation mission at the Ba'ku homeworld.
After capturing and fixing Data they return to the Ba'ku village on the planet surface to find what caused him to malfunction. They find a Federation ship which is basically a holodeck of the Ba'ku homeworld, apparently so the Ba'ku can be unwittingly relocated.
It turns out the planet has fountain of youth qualities which the Federation and Son'a wish to harvest. However, harvesting the particles would cause the planet to become uninhabitable.
Captain Picard and crew (including Worf, who just happened to turn up at the beginning of the movie) return to the planet surface to prevent the relocation of the Ba'ku (tree-sitting, of sorts).
Picard is captured but reveals to the Federation Admiral that the Son'a are actually Ba'ku who left the planet years ago and are simply out for revenge. Fights and trickery ensue.
All in all, this wasn't a great movie. Too much fighting (and I don't mean ship battles) and the plot didn't live up to its potential.
This writeup is licensed under the GNU Free Documentation License and the Creative Commons Attribution-ShareAlike License. (Use whichever you prefer.)