This story of Earth's collision with a runaway star is still a dazzling example of screen sci-fi from the '50s, when special effects were entering a new stage of advancement. Despite scientists' warnings about the star's destructive potential, government officials refuse to take action that could cause international panic, but a consortium of private industrialists prepare for the worst by building a gigantic spaceship--an ark for humanity to begin life anew on a distant planet. Who will be chosen to go, and who left behind? As earthquakes roar and massive tidal waves devastate entire cities, the huge rocket prepares for take-off from its miles-long launching ramp--ready to abandon the shattered Earth!