Skilled assassin Will Robie is asked by the U.S. government to track down fellow assassin Jessica Reel, who has gone rogue, but during his pursuit of Reel, Robie realizes that her betrayal may be concealing a larger threat that could impact the whole world.

For many long years, Atlee Pine was tormented by uncertainty after her twin sister, Mercy, was abducted at the age of six and never seen again. Now, just as Atlee is pressured to end her investigation into Mercy's disappearance, she finally gets her most promising breakthrough yet: the identity of her sister's kidnapper, Ito Vincenzo. With time running out, Atlee and her assistant Carol Blum race to Vincenzo's last known location in Trenton, New Jersey...