Locked on

But what neither father nor son knows is that the political and personal have just become equally dangerous. A devout enemy of Jack Sr. launches a privately-funded vendetta to discredit him and connect him to a mysterious killing in his longtime ally John Clark’s past. All they have to do is catch him. With Clark on the run, it’s up to Jack Jr. to stop a growing threat emerging in the Middle East, where a corrupt Pakistani general has entered into a deadly pact with a fanatical terrorist to procure four nuclear warheads they can use to blackmail any world power into submission—or face annihilation.