In the near future, a hostile alien race have attacked Earth. If not for the legendary heroics of International Fleet Commander, Mazer Rackham (Ben Kingsley), all would have been lost. In preparation for the next attack, Colonel Graff (Harrison Ford) and the International Military are training only the best young children to find the future leader. Ender Wiggin (Asa Butterfield), a shy, but strategically brilliant boy is pulled out of his school to join the elite. Arriving at Battle School, Ender quickly and easily masters increasingly difficult war games, distinguishing himself and winning respect amongst his peers. Ender is soon ordained by Graff as the military's next great hope, resulting in his promotion to Command School. Once there, he's trained by Mazer Rackham himself to lead his fellow soldiers into an epic battle that will determine the future of Earth and save the human race.