When the Prime Minister of Britain passes away under mysterious circumstances, his funeral becomes an international event, with several world leaders of the western world gathering to pay their respects. But this protected gathering is actually a part of a deadly assassination plan.
Now, it is up to the U.S. Secret Service Agent Mike Banning(Gerard Butler) alongside U.S. Vice President V.P. Trumbull(Morgan Freeman) to protect their President Benjamin Asher(Aaron Eckhart) and put an end to this major conspiracy.