When a struggling comedian shows one act of kindness to a vulnerable woman, it sparks a suffocating obsession which threatens to wreck both their lives.

Following the murder of his fiancée, Mitch Rapp trains under the instruction of Cold War veteran Stan Hurley. The pair then is enlisted to investigate a wave of apparently random attacks on military and civilian targets.

In London for the Prime Minister's funeral, Mike Banning is caught up in a plot to assassinate all the attending world leaders.