Far in the future, 60,000 light-years from Earth, a loose confederacy of Terran exiles are locked in battle with the enigmatic Protoss and the ruthless Zerg Swarm. Each species struggles to ensure its own survival among the stars in a war that will herald the beginning of mankind's greatest chapter - or foretell its violent, bloody end.

Jake Ramsey - an unassuming yet talented archaeologist - has been given the chance of a lifetime. Hired to investigate a recently unearthed Xel'Naga temple, he knows this latest assignment will open up whole new possibilities for his career. Yet when Jake discovers the remains of a long-dead protoss mystic, his hopes and dreams are irrevocably drowned in a flood of alien memories. Bonded to the spirit of the dead protoss, Jake has become the sole inheritor of the protoss' total history - every event, every thought - every feeling.

Sixty-thousand light-years from Earth, the corrupt Terran Confederacy holds the Koprulu sector tightly in its tyrannical grip, controlling every aspect of its citizens' lives. One man dares to stand up to this faceless empire and vows to bring it to its knees: Arcturus Mengsk - genius propagandist, tactician, and freedom fighter. A monstrous act of bloody violence sows the seeds of rebellion in Arcturus, but he is not the first Mengsk to rail against such oppression. Before Arcturus grew to manhood, his father, Angus Mengsk, also defied the Confederacy and sought to end its reign.

For the poor, hardworking citizens of the Confederacy's fringe worlds, the Guild Wars have exacted a huge toll. Swayed by the promise of financial rewards, a new batch of recruits joins the fight. Eighteen-year-old Jim Raynor, full of testosterone and eager to make things right at home, ships off to boot camp and finds his footing on the battlefield, but he soon discovers that the official mission is not what he's really fighting for.

After nearly a decade of brutal warfare, three mighty factions - the enigmatic Protoss, the savage Zerg, and the Terrans, humanity's descendants in the sector - have entered a cease-fire, but the peace is tenuous at best. When the sudden restoration of an incinerated planet is brought to light, tensions erupt. Neutrality swings back to hostility, and old enemies are accused of developing biological weapons to reignite the bitter conflict.