|Land of the Lost|
|Season 1, Episode 5|
|Air date||October 5, 1991|
The Crystal is the fifth episode of the Land of the Lost (1991 TV series).
Shung, Keeg and Nim manage to lose Shung's prized crystal sword. The weapon unexpectedly comes into Annie Porter's possession, and she decides to use it to get back at Kevin for his bad treatment of her.
Unfortunately, every time Annie uses the alien crystal blade, she seems to lose a bit more of her humanity, becoming more and more unforgiving, and more and more cruel. Possession of the sword begins to transform Annie. She stops wearing her glasses, and we see dark circles under her eyes. Her hair grows more wild, and her acts of mischief seem to become easier and easier.
Tom, Kevin and Shung himself attempt to get the blade out of Annie’s possession, but she becomes fiercely protective of it. Finally, Tom convinces her that the crystal is "evil" and "wrong", and that she will end up like Shung if she continues to use it. Annie then willingly gives it up, ashamed of her behavior.
With Annie no longer in controlling of it, the sword knowingly seeks out Shung again. Quickly returning to the Sleestak warlords possession.