"Cassie and the other members of the Naturals program of the FBI are drawn into a murder investigation in Vegas"--

Recruited by Dillon Savich for his uncanny criminal-tracking instincts, FBI Special Agent Griffin Hammersmith investigates a perplexing attack involving his music-student sister while Savich and Sherlock examine the bizarre murder of a Federal Reserve Bank chairman's grandson.

San Francisco judge Ramsay Hunt, longtime friend to FBI agents Lacey Sherlock and Dillon Savich, begins the murder trial of Clive and Cindy Cahill only to have federal prosecutor Mickey O'Rourke, known for his relentless, aggressive style, suddenly turn tentative and distracted. Hunt suspects that something is very wrong -- and then O'Rourke goes missing and Judge Hunt gets shot in the back. Savich and Sherlock receive news of the attack as a mysterious...

FBI agent Nick Pellisante finally captures mob boss Dominic Cavello. Two of Cavello's former employees are ready to testify against him when he hires a killer to make sure the trial never concludes.

Racing against time to find a teenage girl who has gone missing from Queens, FBI agent Elsa Myers navigates a frustrating series of false leads while enduring the collapse of her own carefully compartmentalized world.

To rescue kidnapped Tess Chaykin, FBI agent Sean Reilly infiltrates the Pope's massive Vatican Secret Archives of the Inquisition in search of a document known as the Fondo Templari, a secret history of the infamous Templars.

FBI Special Agent Kate O'Hare is known for her fierce dedication and discipline on the job, chasing down the world's most wanted criminals and putting them behind bars. Her boss thinks she is tenacious and ambitious; her friends think she is tough, stubborn, and maybe even a bit obsessed. And while Kate has made quite a name for herself for the past five years, the only name she's cared about is Nicolas Fox, an international crook she wants in more...

In Washington, D.C., twelve-year-old Florian Bates, a consulting detective for the FBI, and his best friend Margaret must uncover the truth behind a series of private middle school pranks that may or may not involve the daughter of the President of the United States.