The war against the Swarm isn’t going well. The governments of the Sovereign Star systems are riddled with treachery, treason, duplicity and … defection. And the enemy is evolving.

Enter the Imperator, an intelligent, technological alien entity unlike anything the USF has previously encountered.

Commodore Richard Morian’s mission is to capture the Imperator …

… but it will take a planetary invasion on a grand scale to do so, a battle fought in space, in the air, and on the ground. And all this to a backdrop of political intrigue that threatens to bring the entire Sovereign system down.