400 years in the future, the Solar System is being overrun by a mysterious armada. The outer colonies fall in a matter of months, killing millions of pure gene Terrans and genetically modified Genen colonists. EarthCorp's Sentinel fleet, under the command of Admiral Katherine Shepard, must make a brave last stand at SaturnSys. 

But the centuries old prejudices held by the pure gene Sentinel officers make it difficult to fight along the Genens the all powerful Transplanatary Corporations have inducted as emergency reserve forces.

Series content warnings: Warfare, violence, mature content, body horror