Shoot the incoming enemies to protect your base. Collect weapons and turrets that automatically fire on the incoming missiles. Push the turrets around the battlefield to take advantage of their range and abilities.
Start with a bi-plane which is mounted with a puny caliber gun and a handful of bombs. As you battle your way in the air through different types of landscapes and environments, earn points to upgrade to a much powerful plane.
Earth is being invaded by an alien race and the only chance humanity stands at defeating the alien invaders lays buried in our past. Journey back in time to exotic lands and uncover an ancient alien super weapon - mankind's survival depends on it.
