Samus is sent to the twisted planet Aether to rescue fellow space marines from the Galactic Federation. However, they were all killed by a hostile race of interdimensional beings known as the Ing. Samus has no choice but to survive this parallel universe of Aether and battle the Ing and Space Pirates. But her greatest threat... is herself. Beware of Dark Samus, a Phazon corrupted life-form reborn from the ashes of Metroid Prime, who stalks the real Samus through the shadows of Aether.
