The year is 2088 C.C. The galaxy is engulfed in a bitter and bloody war. The United Galaxy Nations signed a treaty that would form an alliance to fight crime throughout the galaxy. They constructed a 90 billion dollar space station that would serve as the headquarters to the Galactic Federation. They were an organization with a single goal-stopping the spread of galactic crime. Equipped with the best weapons and technology at their disposal, they fought many battles against the warring, technologically advanced Space Pirate Armada. Led by the council of High Command, the pirates were dedicated to conquering the entire known universe.

The conflict took a turn for the worse after a time. The pirates had discovered on a distant planet a life form capable of giving them the power to win the war. This creature, which mysteriously sucked the life-energy out of its victims, was known as Metroid. The federation realized they had to stop the pirates' from using this creature at any cost. They discovered their main base of Metroid experimentation-A distant planet called Zebes. They federation knew they only had one shot to stop the pirates, so they sent in their best bounty hunter to do the job. She had a 100% success rate, and, above all else, knew the layout of the planet better than any other hunter they had.

Samus Aran.