This low-budget invasion yarn about scientists trying to salvage an abandoned saucer raises an interesting semantic question: Can it still be called a UFO if it's spotted at the bottom of a lake? Either way, there's little denying that the otherworldly craft is packed with mystery and excitement. But can the quick thinkers retrieve the ship, and if they do, will it be occupied by evil aliens? Nick Plakias, Cynthia Cline, Tom Arcuragi star. 80 min. Standard; Soundtrack: English Dolby Digital stereo; photo gallery.