The FBI Declassified Season 2 is yet to be announced by CBS

A gunman out for revenge. Government officials his targets. How FBI agents went undercover to stop his plan.

In 2011, the FBI became aware of an online black market website, the Silk Road, where users could buy and sell goods, including illegal drugs and weapons. Even murders for hire were offered. The site was run by an individual known only as the Dread Pirate Roberts, named after a character from the classic film "The Princess Bride." An elite FBI cyber taskforce worked to infiltrate the site and identify its founder: Ross Ulbricht, a 29-year-old computer science engineer. "Dangerous Journey on The Silk Road," follows the investigation that led FBI agents from Iceland to New York to San Francisco in search of the shadowy figure behind the website.

Dana Lawrence, a career con woman - whose scams included posing as an heir to a cosmetics dynasty and an employee of a top Hollywood filmmaker - duped friends, lovers and acquaintances out of hundreds of thousands of dollars. Then FBI Special Agent Mark Hastbacka got the case. Hastbacka reveals his quest to outsmart the mysterious grifter. "The Swindling Seductress" takes viewers inside Hastbacka's months-long investigation: how he located multiple victims, followed a complex paper trail and how he enlisted one of Lawrence's daughters to help unravel the scams.

In the spring of 2018, the city of Austin, the capital of Texas, was under siege. A serial bomber was killing and maiming random victims with homemade devices. Could law enforcement stop the bomber before more people lost their lives? FBI agents reveal the unprecedented effort to stop the human destruction. "20 Days of Terror: The Austin Bomber" brings viewers into the investigation to see how the bureau worked side by side with multiple law enforcement agencies to identify, track and catch the bomber.

FBI agents take viewers inside one of the Bureau's most important counterintelligence investigations to track Russian operatives living in America and seeking critical secrets. "The Spies Next Door" reveals the dangerous hunt to find and stop the spies in a wide-ranging FBI investigation called "Operation Ghost Stories." Agents bugged the spies' homes, followed their travels and ultimately cracked their secret communications network.

FBI agents and analysts take viewers inside a real-life race against the clock mission to save a 5-year-old boy held hostage by an armed gunman. "Saving Ethan" will give viewers unprecedented insight into the tactics investigators used to rescue a young boy kidnapped in rural Alabama.