G.O.N writes: "Halo Wars is set roughly 20 years before the events of the first Halo game. The game begins on the colony of Harvest, the first planet to be attacked by the Covenant, where the two forces have been locked in conflict for around six years. Leading the UNSC forces planet-side on Harvest is Sgt. John Forge, who has been sent down to the surface to investigate Covenant activity. Forge's group, assisted by Professor Anders and the AI construct Serina, discover a plot by the Covenant Arbiter to use a Forerunner super-weapon to the UNSC forces. High quality pre-rendered CG sequences book-end each mission and push the story along."