Asteroids and comets are constant threats to our fragile solar system, able to obliterate cities, continents, and if large enough, destroy a world.

Three giant ships were created with the sole purpose to stop asteroids and comets, using the largest weapons humankind has ever built. After centuries of patrols in our solar system, the loss of two of the giant ships, only one remains, the Medusa.

The Medusa is old, has seen more than its fair share of wars and comets. This last behemoth seems to have gathered a lot of attention from the nations of the solar system. The sheer size of the vessel would bring in materials that are usually too expensive to purchase, and the weapons are powerful enough to destroy almost anything in the solar system.

Now nations use political savvy to try and take control of the ship, spies are on-board to breed mutinies, fleets are secretly sent out to try and batter the Medusa into submission. All of these spin out of control as other secrets roam through the giant ship, threatening the crew, other nations, and the very existence of humanity.