SETI has received a warning that Earth will be attacked. All of humanity will be wiped out to make room for another species.

With no possibility to defend Earth, the future of the human race lies in the past. Test pilot Jim Norgas embarks on a journey in an experimental spaceship filled with the brightest minds humanity has to offer.

Their mission: travel into Earth's past to gain the time needed to develop weapons and technology that can change the course of the coming battle. All with the primary rule - do not alter the past.

From the start, their mission is in peril. Traveling across space and time proves hard enough; to remain hidden, even harder. Both require ingenuity and quick thinking.

With mistakes and accidents along the way, Jim begins to question the primary rule.

The Anarbia Story begins here - the first step in Earth's fight for survival.