2072. A volcanic eruption is to trigger catastrophic devastation. Production of a space fleet is meant to save humankind, and the children of engineers and scientists are touring the Lazarus, a high-tech prototype spaceship. When the apocalypse arrives ahead of schedule, this handful of teens from the tour are the only ones to escape the planet. They are hunting for a habitable planet, but as isolation presses in, their uneasy peace begins to fracture.