The fate of all mankind is in your hands. Alien invaders are assaulting the planets and your troops are the only ones standing between them and humanity. Drive them back using whatever means necessary and keep them from destroying Earth. Select your soldiers and prepare to hold back the invaders in unique Tower Defense-style action. Use super-charged weapons and upgrade your army as it rushes towards the alien portal from which they are attacking. Each wave gets tougher but by strategizing correctly while in battle, you can push them back and claim victory.
