Set in the 26th century in a distant part of the Milky Way galaxy, the game revolves around three species: the Terrans, human exiles from Earth; the Zerg, a race of insectoid genetic assimilators; and the Protoss, a species with vast psionic power. Wings of Liberty focuses on the Terrans, while the expansions Heart of the Swarm and Legacy of the Void will focus on the Zerg and Protoss, respectively. The game is set four years after the events of StarCraft: Brood War, and follows the exploits of Jim Raynor as he leads an insurgent group against the autocratic Terran Dominion. The game includes both new and returning characters and locations from the original game.