In the world of digital media, a refers to a re-release of a file to fix previous technical issues.

Mike Banning was once the top agent on President Benjamin Asher's security detail. However, a tragic car accident on a snowy night changed everything. Banning managed to save the President, but the First Lady, Margaret Asher, perished when their vehicle plunged into a frozen river. Consumed by guilt and removed from the active detail, Banning was reassigned to a desk job at the Treasury Department, watching "Olympus"—the Secret Service code for the White House—from a distance. Olympus Under Siege

, a disgraced former Presidential security guard who becomes the nation's only hope when the White House (code-named "Olympus") is seized. Movie Plot Summary