An alien saucer crashes in the Utah foothills. Reports of its fiery demise draw David Vincent, even after flyovers by Air Force jets failed to locate the site of the mysterious fireball. Vincent soon discovers Gale Frazer, who has helped the craft's only survivor, Blake. Frazer, sick of war after serving in Vietnam, believes Blake's people are peaceful. David must gain her trust and convince her that Blake's mission is not peaceful. That is complicated by the arrival of Sawyer and Lavin, who have come to collect the box Blake's craft brought to Earth.
—CommanderBalok