Browse through the campaigns from here. Currently there are two campaigns, After Brood War and Forgotten World. After Brood War is completely finished, Forgotten world is currently in progress. Visit the Forgotten World page to see how much of the campaign is available so far.

 

	After Kerrigan's victory over the UED, Jim Raynor mourned the loss of his ally Fenix as him and his small band of rebels roamed deep space as Fugitives. Responding to a distress call from Braxis, Jim becomes embroiled in another galactic conflict that takes brings him into conflict with the zerg and the Protoss, and sees the return of an old friend.... After Brood War page
	All life on the former fringe colonies of Mar Sara, Tarsonis and Antiga Prime had been extinguished when the Protoss rained fire down on the surface to eradicate the zerg infestation that the Terrans had suffered. With the downfall of the Confederacy and subsequent rise of the Dominion, these worlds remained largely ignored by Mengsk. He presumed, as others did, that they would remain uninhabitable. However, among the blackened earth and desert wastes that covered the forgotten worlds, a small band of Terrans had returned to the homes they fled before the Armageddon engulfed their planets. Ever adaptable, these Terrans began to reconstruct their former cities and thrive once more. By keeping their settlements small and widely spread, surface activity had gone unnoticed by the Dominion and the Protoss.... Forgotten World page