Taking the role of David Pierce, ace pilot of the SeaBlade Squadron, players tackle 39 air and sea search and rescue missions to support the Southern Alliance in the battle against the Northern Warlords' aggression. Cataclysmic disasters have reshaped the 24th century world, creating chaos and hazardous regions where innocent civilians are trapped under the tyranny of the North. Missions take place in six post-apocalyptic areas: Hokkaido (oil-refining center), Venezuela (volcanic basin), Colorado (now an island with abandoned NORAD bunkers), Texas (turbulent sandy island), London (valuable minerals), and Iceland (excavation site of an alien ship of vast size and power).