On Sept 17th, 2016 a bomb detonates in NYC, injuring over 30 people and causing mayhem. In the following hours and days, multiple bombs are discovered across Manhattan and New Jersey, all homemade devices designed to kill or maim as many people as possible. The FBI works with local law enforcement to track down a suspect who comes to be called “The Chelsea Bomber” ending in a nail-biting standoff.

In 1999, three women went missing in Yosemite National Park, launching the largest search and rescue operation in US history.  The bodies of two of the women are found in a burned car, and the third is only found when the killer sends a taunting note to the FBI.  Five months later, when a fourth woman is found beheaded near the park, the Bureau believes a serial killer may be on the loose.

On the 11th anniversary of 9/11, armed men storm the U.S. Special Mission in Benghazi, Libya. The attack kills US Ambassador Christopher Stevens and three other Americans. The FBI launches an international investigation to track down the perpetrators, but in the chaos of post-Gaddafi Libya, arresting a suspect is no easy feat.

After a “family friend” murders a California mother and her 8-year-old son, the woman’s 16-year-old daughter is nowhere to be found. Authorities learn the killer has kidnapped Hannah Anderson and taken her to the remote wilderness of Idaho. The FBI’s Hostage Rescue Team receives a tip and tries to track down the pair before it’s too late.

An ATF raid on the compound of an armed religious group in Waco, Texas, goes wrong, leaving four federal agents dead and more than a dozen wounded. The FBI must find a way to end the deadly standoff.

The longest siege in US history ends in bloodshed, leaving a record of anger and controversy that still burns today.