Introduction
At the dawn of the 21st Century, mankind makes a startling discovery. Beneath the sands of the earliest known human civilization, traces of another, even more ancient- but technologically advanced- civilization are uncovered. The profound scientific implications of this discovery leads humankind to the far reaches of the universe. Everything seems perfect- but too perfect to last.
In the year 2104, human civilization is attacked by countless deadly monsters, spawned from another dimension. In the battles that follow, humankind fights valiantly, but nothing can stop the monsters from coming. Earth’s forces are steadily defeated, planet-by-planet, from Alpha Centaury back to their own solar system.
Because of his extreme bravery in battling monsters, Sam 'Serious' Stone becomes a legend. Wounded countless times- but never defeated- Serious Sam becomes a living symbol of the Earth's resistance against the advancing evil.
But, no matter how bravely the human armies fight, they are defeated, time and again. Attempts to defend the solar system fail and the Earth is now under direct attack. Humankind stares into the face of its own annihilation.
World leaders must now turn to their last chance- an ancient artifact called the ‘Time-Lock’, a relic from a long-forgotten race, imbued with the power to teleport a single person back in time. The choice of whom to send is obvious…
Serious Sam becomes the final hope for humankind. He must return to the past and change it to save his race from extinction from an evil force determined to purge the galaxy of all intelligent life.
