A small group of heavily armed, meticulously trained extremists launches a daring daylight ambush on the White House, overrunning the building and taking President Benjamin Asher (Aaron Eckhart) and his staff hostage inside an impenetrable underground presidential bunker. As a pitched battle rages on the White House lawn, former presidential
security officer Mike Banning (Gerard Butler) joins the fray, only to find himself the last Secret Service member alive in the besieged building.
Banning uses his extensive training and detailed knowledge of the presidential residence to become the eyes and ears of Acting President Allan Trumbull (Morgan Freeman) and his advisors. As the invaders begin executing hostages and threaten to kill more unless their outrageous demands are met, Banning tries frantically to locate the
president’s young son, hidden somewhere in the building, and rescue the president before the terrorists can unleash their ultimate, terrifying plan. As the body count mounts and the clock ticks down, it becomes clear that Banning is America’s only hope of avoiding utter annihilation.