Following the outbreak of a virus that wipes out the majority of the human population, a young woman documents her family's new life in quarantine and tries to protect her infected sister.

We always knew they were coming back. Using recovered alien technology, the nations of Earth have collaborated on an immense defense program to protect the planet. But nothing can prepare us for the aliens’ advanced and unprecedented force. Only the ingenuity of a few brave men and women can bring our world back from the brink of extinction.