Piece on Earth

In December of 2012 a spacecraft appeared in Earth's atmosphere. Admiral Pygor informed the inhabitants of the planet that it belonged to his people and they'd returned to claim it as stipulated in a million year old contract signed by the most sentient beings of that time. Elise Brandon, as beautiful as she is smart, is sent in to authenticate the document, but she takes him out to a Christmas party instead. Very soon, the tables are turned when Pygor's ship is destroyed, but one lone shuttle escaped, crashing somewhere in the California desert. Now Pygor and Elise are on the run, and the desert is their ultimate destination in the hopes that his son is among those who survived.