"Defend the planet from an onslaught of extra-terrestrial invaders with the release of Appular’s Invaders World Tour 3, for iPhone, iPod touch and iPad. In the game, countries all over the world have witnessed a surge in extra-terrestrial activity with appearances of worm-holes and alien life-forms in the sky. The United States, Canada, Europe and China have collectively gone up in arms to defend against what seems to be a hostile takeover, and are asking players join the fight for humanity!" Source: The Developer Website.