Manmade and natural disasters take their toll in this taut twin bill. In Fallout, a joint American-Russian mission to a space station orbiting the Earth turns dangerous when one of the Russians reveals a plan to use nuclear weapons to hold the earth hostage. In Survival on the Mountain, a trek into the Himalayas becomes a desperate ordeal for the Hoffmans (Dennis Boutsikaris and Markie Post) when a freak blizzard leaves their group isolated and exposed to avalanches.