Planet Earth is under attack from alien invaders and the Earth Defense Force (EDF) is the only chance for survival. Face off against giant ants, spiders, robots and monsters. Annihilate aliens with assault rifles, rocket launchers and flame throwers. Over 50 missions to complete around the world. Control battle tanks, armoured mechs and attack helicopters. Bridges, skyscrapers and buildings can be blasted into pieces. Join-up with friends in co-op mode to massacre the alien swarms.