As President Florentyna Kane tries to push her tough gun-control bill through Congress, Special Agent Mark Andrews is charged with finding out which senator is involved in an assassination plot that has already resulted in the deaths of four people.

When there is an assassination attempt on US President Allan Trumbull, his trusted confidant, Secret Service Agent Mike Banning, is wrongfully accused and taken into custody. After escaping from capture, he becomes a man on the run and must evade his own agency and outsmart the FBI in order to find the real threat to the president. Desperate to uncover the truth, Banning turns to unlikely allies to help clear his name, keep his family from harm, and...