Betty Pack was charming, beautiful, and intelligent - and she knew it. As an agent for Britain's MI6 and then America's OSS during World War II, these qualities proved crucial to her success. This is the remarkable story of this "Mata Hari from Minnesota" ( Time) and the passions that ruled her tempestuous life - a life filled with dangerous liaisons and death-defying missions vital to the Allied victory.

In 1946, genius linguist and codebreaker Meredith Gardner discovered that the KGB was running an extensive network of strategically placed spies inside the United States, whose goal was to infiltrate American intelligence and steal the nation's military and atomic secrets. Over the course of the next decade, he and young FBI supervisor Bob Lamphere worked together on Venona, a top-secret mission to uncover the Soviet agents and protect the Holy Grail of Cold War espionage - the atomic bomb.

When a “neutral” United States becomes a trading partner for the Allies early in World War I, the Germans implement a secret plan to strike back. A team of saboteurs - including an expert on germ warfare, a Harvard professor, and a brilliant, debonair spymaster - devise a series of “mysterious accidents” using explosives and biological weapons, to bring down vital targets such as ships, factories, livestock, and even captains of industry like J. P. Morgan. New York Police Inspector Tom Tunney, head of the department’s Bomb Squad, is assigned the difficult mission of stopping them.

On a sunlit morning in September 1978, a sloop drifts aimlessly across the Chesapeake Bay. The cabin reveals signs of a struggle, and “classified” documents, live 9 mm cartridges, and a top-secret “burst” satellite communications transmitter are discovered aboard. But where is the boat’s owner, former CIA officer John Paisley? One man may hold the key to finding out. Tennent “Pete” Bagley was once a rising star in America’s spy aristocracy, and many expected he’d eventually become CIA director.

The team: A handpicked squad of FBI agents -- led by a war hero determined to get the job done. The target: John Gotti, the seemingly invincible head of the richest and most powerful crime of modern-day Untouchables, the FBI's C-16 Organized Crime squad, who finally ended the cocky crime lord's reign of terror.

During World War II, in the middle of building an atomic bomb, the leaders of the Manhattan Project were alarmed to learn that Nazi Germany was far outpacing the Allies in nuclear weapons research; Hitler, with just a few pounds of uranium, would have the capability to reverse the entire D-Day operation and conquer Europe. So they assembled a rough and motley crew of geniuses - dubbed the Alsos Mission - and sent them careening into Axis territory to spy on, sabotage, and even assassinate members of Nazi Germany's feared Uranium Club.

By early December 1941, war had changed much of the world beyond recognition. Nazi Germany occupied most of the European continent, while in Asia, the Second Sino-Japanese War had turned China into a battleground. But these conflicts were not yet inextricably linked - and the United States remained at peace. Hitler’s American Gamble recounts the five days that upended everything: December 7 to 11. 

April 12, 1945: After years of bloody conflict in Europe and the Pacific, America is stunned by news of President Franklin D. Roosevelt’s death. In an instant, Vice President Harry Truman, who has been kept out of war planning and knows nothing of the top-secret Manhattan Project to develop the world’s first atomic bomb, must assume command of a nation at war on multiple continents - and confront one of the most consequential decisions in history.

While getting into his car on the evening of February 16, 1978, the chief of the CIA's Moscow station was handed an envelope by an unknown Russian. Its contents stunned the Americans: details of top-secret Soviet research and development in military technology that was totally unknown to the United States.

In 1942, in a quiet village in the leafy English Cotswolds, a thin, elegant woman lived in a small cottage with her three children and her husband, who worked as a machinist nearby. Ursula Burton was friendly but reserved, and spoke English with a slight foreign accent. By all accounts, she seemed to be living a simple, unassuming life. Her neighbors in the village knew little about her. They didn’t know that she was a high-ranking Soviet intelligence officer. They didn’t know that her husband was also a spy, or that she was running powerful agents across Europe.

We all now live in a paranoid and polarized world of Putin's making, and the Russian leader, through guile and disruption, has resurrected Russia's status as a force with which to be reckoned. From renowned foreign policy expert Angela Stent comes a must-hear dissection of present-day Russian motives on the global stage. 

A legal analyst for NPR, NBC, and CNN, delves into the facts surrounding what has been called the “worst intelligence disaster in US history”: the case of Robert Hanssen—a Russian spy who was embedded in the FBI for two decades.  

Following Caesar’s assassination and Mark Antony’s defeat of the conspirators who killed Caesar, two powerful men remained in Rome - Antony and Caesar’s chosen heir, young Octavian, the future Augustus. When Antony fell in love with the most powerful woman in the world, Egypt’s ruler Cleopatra, and thwarted Octavian’s ambition to rule the empire, another civil war broke out. In 31 BC, one of the largest naval battles in the ancient world took place - more than 600 ships, almost 200,000 men, and one woman - the Battle of Actium. 

From “master of the genre” (The Washington Post) Joseph Kanon comes an espionage thriller set at the height of the Cold War, when a captured American who has spied for the KGB is swapped by the British and returns to East Berlin needing to know who arranged his release and what they want from him. 

Britain's Special Air Service - or SAS - was the brainchild of David Stirling, a young, gadabout aristocrat whose aimlessness in early life belied a remarkable strategic mind. Where most of his colleagues looked at a battlefield map of World War II's African theater and saw a protracted struggle with Rommel's desert forces, Stirling saw an opportunity: Given a small number of elite, well-trained men, he could parachute behind enemy lines and sabotage their airplanes and war matériel.