In 2029, astronauts on board the spacecraft Nautilus narrowly escape a solar flare that destroys their ship and sends Mercury hurtling towards Earth on a collision course. Scientist James Preston explains the unpredictable asteroid threat to his audience before losing contact with the Nautilus crew. As Preston works to save his crew, he teams up with Brooke Adamson, Christopher Weaver, and others to devise a plan to deflect the planet's massive magnetism and alter its trajectory. Victoria Preston, Marshall Donnington, and Edward Rex lead the efforts to find a solution to prevent a catastrophic impact.