Tycus (1999)

When photographer Jake Lowe gets gets a cryptic message from an old friend, he follows its instructions leading him to a remote research station in the Sierra mountains. After doing some snooping around, he learns a terrible secret: a giant comet will be passing next to the Earth, unleashing earthquakes, volcanoes, meteor strikes and other natural disasters that will destroy the world as we know it. Somehow, Lowe must get the word out and warn people of the coming catastrophe, but even if he succeeds, will it make any difference?