As England prepares to fight the Nazis, three very different women answer the call to mysterious country estate Bletchley Park, where the best minds in Britain train to break German military codes. Vivacious debutante Osla is the girl who has everything - beauty, wealth, and the dashing Prince Philip of Greece sending her roses - but she burns to prove herself as more than a society girl, and puts her fluent German to use as a translator of decoded enemy secrets.

Meredith Morris-Dale is a CIA case officer and a damn good one...even if this last mission did go terribly wrong. Now she has been summoned back to Langley where she expects to be fired. Instead, she is met by the Deputy Director with stunning news. A single well-placed CIA mole in Iran’s uranium enrichment program has kept the terrorist nation from building a bomb by sabotaging the performance of their covert centrifuge arrays. But after losing his daughter in an airliner shootdown, the mole wants out—leaving the world on the brink.

CIA Case Officer Sam Joseph is dispatched to Paris to recruit Syrian Palace official Mariam Haddad. The two fall into a forbidden relationship, which supercharges Haddad's recruitment and creates unspeakable danger when they enter Damascus to find the man responsible for the disappearance of an American spy. But the cat-and-mouse chase for the killer soon leads to a trail of high-profile assassinations and the discovery of a dark secret at the heart of the Syrian regime.

Nuclear negotiations between the United States and Iran have reached a crisis point. The new American administration is determined to move ahead, but there are several stumbling blocks, not the least of which is Lieutenant Colonel Kasem Khalidi, the former Iranian Quds Force intelligence officer the CIA has hidden away in one of its safe houses. As always, John and Meredith Dale are caught in the middle.

After five years in hiding from their murderous father, the day Kristen and Ryan McIntyre have been dreading has arrived: Boyd McIntyre, head of a Los Angeles crime family, has at last tracked his kids to a small Montana town and is minutes away from kidnapping them. They barely escape in a small plane, but gunfire hits the fuel line. The pilot, a man who has been raising them as his own, manages to crash land in the middle of the Montana wilderness. The siblings hike deep into the woods, searching desperately for safety—unaware of the severity of the approaching storm.

Sarah Ridgeway is living the life she’s always envisioned. She has a devoted husband, a loving daughter, and a comfortable home. The path to reach it, however, has not always been smooth. For twelve years her husband, Bryce, served in the Army, deployed to some of the world’s worst trouble spots. After his service ended with a combat injury, the future had seemed precarious, but with Sarah’s support and that of his wealthy family, combined with his exemplary service record, he is elected to Congress.

When Phil Kramer is shot dead on a deserted suburban street in the middle of the night, his wife, Emily, is left with an emptied bank account and a lot of questions. How could Phil leave her penniless? What was he going to do with the money? And, most of all, who was he if he wasn't the man she thought she married?

Jerry Hobart has some questions of his own. It's none of his business why he was hired to kill Phil Kramer. But now that he's been ordered to take out Kramer's widow, he figures there's a bigger secret at work - and maybe a bigger payoff.

Evan Smoak is a man with skills, resources, and a personal mission to help those with nowhere else to turn. He’s also a man with a dangerous past. Chosen as a child, he was raised and trained as an Orphan, an off-the-books black box program designed to create the perfect deniable intelligence asset: An assassin. Evan was Orphan X - until he broke with the program and used everything he learned to disappear. But now someone is on his tail.

Joe Brody is just your average Dostoevsky-reading, Harvard-expelled strip-club bouncer who has a highly classified military history and whose best friend from Catholic school happens to be head mafioso Gio Caprisi. FBI agent Donna Zamora, the best shot in her class at Quantico, is a single mother stuck at a desk manning the hotline. Their storylines intersect over a tip from a cokehead that leads to a crackdown on Gio's strip joint in Queens and Joe's arrest - just one piece of a city-wide sweep aimed at flushing out anyone who might have a lead on the most-wanted terrorists....

As a Secret Service agent, Nick Averose spent a decade protecting the most powerful men and women in America and developed a unique gift: the ability to think like an assassin. Now, he uses that skill in a little-known but crucial job. As a "red teamer", he poses as a threat, testing the security around our highest officials to find vulnerabilities - before our enemies can. He is a mock killer, capable of slipping past even the best defenses.

For years CIA officer Sam Hudson has been hunting Konstantin, a Russian deep cover operative responsible for a string of assassinations in the West—and he believes a well-placed source in Geneva can finally get him close to the killer. But when their meeting is ambushed, Sam’s partner is murdered and he barely makes it out alive himself. Back in the States, the bosses put him on leave and want him to drop his obsession with Konstantin, but Sam can’t let a man who’s taken so many lives slip away again.

Your phone rings. A stranger has kidnapped your child. To free them you must abduct someone else's child. Your child will be released when your victim's parents kidnap another child. If any of these things don't happen: Your child will be killed. You are now part of the chain.

A master assassin craves one thing above all else: a normal everyday life. Trained to be a killer from the age of 11, Peter has never known the things the average person takes for granted. He has always been an asset. Burned by the CIA and now occupying their secret hit list, he works overseas as a Ronin, living a solitary life in hiding. But someone knows where he is. A strange man arrives at his door offering Peter the chance of a real life. "Get this done and you can be free," he is told.

Under the direction of the Special Activities Center in the Operations Directorate of the CIA, over three hundred highly trained agents operate in the darkest shadows of the country’s covert wars. Plucked from the highest echelons of America’s special mission units, these individuals go through rigorous training by the Agency to perfect the arts of assassination, sabotage, infiltration, and guerrilla warfare.

Sean Tennant and Molly Winter are living quietly and cautiously in Houston when a troubled, obsessive stranger shatters the safety they have carefully constructed for themselves. Sean is at a shopping mall when Henry Alan Keen pulls out a gun at a store and begins shooting everyone in sight. A former soldier, Sean rushes toward Keen and ends the slaughter with two well-placed shots - becoming a hero with his face plastered across the news. But Sean's newfound notoriety exposes him to the wrath of two men he thought he had left safely in his past.