An ancient order has been behind all of human history, patiently attempting to gain control of the world.  Once called the Order of the Sun or the Order of Light, when the "New World" was being colonized there was a great split.  One group believed in trying to control the world through physical means.  They chose the name Illuminati and moved to the New World, seeing it as a land with the potential to be a super-power in the world.  The other group believed in conquering the world through the mind and the spirit, and used religion and science to gain power.  They call themselves Truth.

There are some people, however, who cannot be controlled.  Some of them gained this ability through trauma, some through will or study, and some were merely born rebels.  These uncontrollable people are called Indomitable Minds by those two groups, and are their enemies, as they stand in the way of their plans.

Truth has many methods which allow them to control the minds and spirits of the people.  Their technology includes mind projection devices which let them project illusions into the minds of others, hologram emitters to show everyone what they wish and to hide the truth, and teleporters to move their people to where they need them.  Many members of Truth also have psychic powers, some of them telepathy, which they can use to read and alter the minds of others.  They are also the world's biggest cult, owning schools, museums, and research facilities, anywhere that knowledge is shared or gained, so that they may subtly influence the minds of those seeking knowledge in their favor.

All who follow them are entirely devoted to them, and follow the orders of those in charge without question.  This is their greatest weakness, because if one knows what to look for, one can recognize their members by the symbols of their devotion, the Star necklaces, the orange robes, or even the way they react to the word "truth".

We are all Indomitable minds.  For whatever reason we cannot be controlled by Truth, and therefore we are their enemies.  We must band together to stand against them, to expose them to the world so that they can no longer secretly gain control.  We live in an underground base which they cannot locate, the safest place we can be against a group with their power.

[hider=Types of Psychic Powers]
Telepathy- Communications with the mind.  Speaking, reading minds, altering memories, or reading emotions.
Telekinesis- Moving objects.  At the high end, teleportation.
ESP- knowledge of things through unknown means.  Battle sense (predicting opponents moves), and Akashic (learning new information by meditating on it) are included in this.
Ki- manipulating the energy of life.  Healing, increasing physical attributes, sensing life energy, and the manipulation of energy outside the body are all in this category.
Elemental- Rare gift to alter a specific thing, sometimes thought of as a form of TK or Ki powers.  That thing could be anything from water to light to radiation, and is usually developed as a response to that thing threatening your life.
[/hider]

[hider=The story of the cave]
Recorded via hologram in the cave:

((The Sky-cloud people came to this land, fleeing those who wish to kill them. Their chiefs had magic, and used it to control the people.  Those who would not obey were killed, so the people lied and lived.  In time they grew tired of lieing, so they fought.  They lost, but stole sky boats to come here.  They built the Doorway to move them deep beneath the ground, and there they hid until they had gathered their allies to join them in the fight.))

Computer records:

A group of mammalian aliens (a type we don't have, with cat-like eye, pig-like skin, and horns) came from their home system (which lies within a nebula) to this system to flee the oppressive Nobles of their homeworld.  Throughout their recorded history, those with psychic power became nobles.  Those that didn't have power were commoners, and treated as little more than slaves.  Should a commoner be found who was an Indomitable Mind, they executed them, fearing that they would turn against the Nobles.  The people learned to hide this fact and, in time, the number of people who were Indomitable Minds greatly increased.  Around the year 900 AD a group of IMs decided that they were tired of being treated as slaves and started a revolt.  The nobles, with their psychic powers, slaughtered most of those that stood up against them.
The IMs knew they would be defeated if they continued down this path, so they stole a starship and fled their homeworld.  Continuing to raise an army via FTL communications with their people, they came to Earth.  Afraid that the Nobles would follow them, they set up two teleporters, one in a cave, and one in a giant underground cavern.  To protect the one in the cave from anyone who wasn't a IM they placed a device beside it that places the thought of leaving in your mind and tries to make you obey that thought.  They then moved under ground in order to try and learn the secret of psychic power.
A few months after they arrived a group of Native hunters entered the cave to stay out of a storm.  While many of them felt like they should brave the storm and leave, the leader of the group calmed them.  As they sat near the fire, he went deeper into the cave, where he found a device made out of materials he'd never seen before.  When he stepped inside of it, he was sent to the cave.  At first the aliens were frightened, but soon one of them came upon the idea of studying the Native.  Within him they found dormant Psychic power and, after studying him, they were able to unlock those powers with their technology.
In time they learned to give themselves powers as well, though, as they had no gift for it, their powers were weak.  They sent their method to their people on the homeworld and, when the rebels there informed them that they had their own skilled psychic warriors, the alien left for their homeworld.
The base became a sacred place for the Natives in the area, and a way to test young warriors, but those beliefs all but disappeared in modern times.  When we went looking for a base, though, we were lead there by an IM Native American who remembered the stories of his ancestors.
[/hider]