The Hy’dran Empire is spreading over a large area of the known galaxy. It extends from the Distant Edge, through Right Arm, to the worlds of the Central Sector. Hy’dran society is a caste society. Dozens of legions called Shoals, under the leadership of the all-powerful Primus warlords, are constantly fighting for influence and power. Each Shoals has millions of subordinates ready to execute the orders of their sovereigns. Nevertheless, the Hy’dran Empire has been ruled for thousands of years by the iron tentacles of the oppressive Archprimus, which unite his minions by the support of the most powerful legions and the mysterious church of the Deep Abyss.
In this type of society there is no place for the weak, and there is no compassion for the disobedient. To the arrivals of the Terrons, Hy’dran’s power was unquestioned, and the inhabitant of the worlds of the Union in the Central Sector were living in fear of the terrible hydran war machine ready to pull their tentacles to these rich and full of life planetary systems. After two unresolved interstellar wars with the Terron Federation, with the mediation of the Union, Hy’drans had to accept peace treaties that have been forced upon them. For more than fifty years they are in power, but what will happen when another ambitious ruler emerge with plan to conquer the stars once again?