Doomsday: Knocking at Doomsday's Door is a 50-minute documentary that explores new-millennium predictions and theories about the earth's demise. Hear what the doom-mongers have to say about killer diseases, uncontrollable asteroids, and catastrophic "changes" in the earth's surface that could wipe out life as we know it. Analyze the probability and degree of such destruction and study the odds of survival. Doomsday: Prophecy and Prediction - Threat or Warning is the second tape in the Doomsday Collection set. ~ Kathleen Wildasin, All Movie Guide