After the betrayal of Horus's seal became apparent, the sole purpose of the few survivors who remained faithful to the oath and duty of the citizen of the Imperium became Terra.[citation needed] The frigate "Eisenstein" under the command of Captain Death Guard Nathaniel Garro breaks through to the cradle of humanity to bring the news of the crime to the attention of the Emperor , the Isthwaan System [ CM ] where the heads of hundreds of thousands of the best warriors of Humanity were laid down , Sacrificed to the insatiable gods of Chaos. The flight of the "Eisenstein" will be debt and difficult, but it will be even more difficult to convince the rulers of Terra of the impossible - in the betrayal of Horus.