Twenty years after the events of the first film, the international community recovers and builds up Earth's defenses using technology salvaged from remains of the alien forces. However, the aliens were able to send a distress signal before their final defeat, which results in anew task force of alien ships coming to Earth.



Hybrid fighters merging human and alien technology. Massive cannon emplacements on the Moon and Mars. A planetary defense force with the finest military personnel ever trained. For two decades we've known the enemy would return.The nations of Earth have collaborated on a unified defense program designed to defend the planet. Yet nothing could prepare us for the immensity of their new assault, and only the courage and skill of a few brave men and women can hope to bring our world back from the brink of extinction.