In the final hours before a comet strikes Earth, Captain Grace Stuart and her team learn they must escape their doomed home for an indefinite mission: getting their ship, the Metis, out of the way before the planet is decimated.

The crew of ten watches as all advanced life on Earth is destroyed, leaving them as the last survivors of the human race.

Aboard their spaceship are the remains of all Earth's living beings, carried as precious DNA samples.

As each crew member handles their grief in their own way, a new threat arises amongst their very group of survivors. They must fight to save themselves, and any hope for a future.