
As a Space Marine, you have undergone extensive genetic modifications, psychochemical conditioning and years of harsh training that would kill a normal man. Through these enhancements and work, you have become superhuman. One of mankind's elite warriors, the Space Marine is the final line of defense between humanity and its enemies. Humanity creates one of its greatest weapons on the industrial Forge World planets. When one of these planets comes under attack from alien forces, you are dispatched to assist the thousands of overwhelmed imperial soldiers that are stationed there. The only thing that can prevent the complete destruction of this planet is you.