The largest terror attack in our nation's history left images seared into our conscience that will never be forgotten. But for those caught in the middle, the memories are as strong today as they were in 2001. Hear the harrowing experiences of a trader who worked in the World Trade Center, a firefighter, a Port Authority officer, an ER doctor, an NYPD rescue worker, and a news reporter who were at Ground Zero, as well as a Pentagon contractor, an Airfone operator communicating with Flight 93, and the head of FAA operations as they experienced the tragic unfolding of a day none had dreamed possible.

The most prestigious race in the country is also Boston's most popular event. Crowds turn out by the thousands to cheer on the runners of the Boston Marathon. The day had always brought the city together, until the one year two suspects tried to tear it apart. When the Tsarnaev brothers planted bombs at the 2013 race, their horrific act killed three people, and maimed many more. Hear from one of the wounded, an on-scene medic, a trauma surgeon, and law enforcement officers who experienced the sudden terror of this cold-blooded act, and the pursuit of justice that followed.

What began as a calm spring morning in Oklahoma City erupted into the largest terrorist act our country had ever experienced. The truck bomb left by Timothy McVeigh at the Alfred P. Murrah Federal building killed 168 people, and altered the lives of hundreds more. Hear the dramatic stories of an office worker trapped in the rubble, a mother whose one-year-old daughter was in the building, a firefighter, a news reporter, and the head of the local FBI tasked with finding the perpetrator, and see how this act that was meant to stoke anti-government rage instead brought a shaken city together.

Followers from around the world travel to Mount Carmel to hear the preaching of David Koresh, a local Texas working-class kid turned prophet of God and leader of the religious group the Branch Davidians. But as Koresh's teachings become more and more apocalyptic, members of the group question his motives. Matters come to a head when the Bureau of Alcohol, Tobacco, and Firearms, believing the group is stockpiling weapons, decides to raid the compound.

The raid of Mount Carmel develops into a 51-day stand-off between the Branch Davidians and the FBI. A direct line of communication is established between FBI negotiators and David Koresh on the inside. While army tanks and snipers set up outside, negotiators plead with Koresh to release the women and children inside the compound, and surrender himself to authorities. On April 19, a frustrated FBI starts inserting tear gas into the building with tanks. A fire develops, and fanned by high-winds, devours the structure and everyone inside.

The largest terror attack in our nation's history left images seared into our conscience that will never be forgotten. But for those caught in the middle, the memories are as strong today as they were in 2001. Hear the harrowing experiences of a trader who worked in the World Trade Center, a firefighter, a Port Authority officer, an ER doctor, an NYPD rescue worker, and a news reporter who were at Ground Zero, as well as a Pentagon contractor, an Airfone operator communicating with Flight 93, and the head of FAA operations as they experienced the tragic unfolding of a day none had dreamed possible.

The most prestigious race in the country is also Boston's most popular event. Crowds turn out by the thousands to cheer on the runners of the Boston Marathon. The day had always brought the city together, until the one year two suspects tried to tear it apart. When the Tsarnaev brothers planted bombs at the 2013 race, their horrific act killed three people, and maimed many more. Hear from one of the wounded, an on-scene medic, a trauma surgeon, and law enforcement officers who experienced the sudden terror of this cold-blooded act, and the pursuit of justice that followed.

What began as a calm spring morning in Oklahoma City erupted into the largest terrorist act our country had ever experienced. The truck bomb left by Timothy McVeigh at the Alfred P. Murrah Federal building killed 168 people, and altered the lives of hundreds more. Hear the dramatic stories of an office worker trapped in the rubble, a mother whose one-year-old daughter was in the building, a firefighter, a news reporter, and the head of the local FBI tasked with finding the perpetrator, and see how this act that was meant to stoke anti-government rage instead brought a shaken city together.

Followers from around the world travel to Mount Carmel to hear the preaching of David Koresh, a local Texas working-class kid turned prophet of God and leader of the religious group the Branch Davidians. But as Koresh's teachings become more and more apocalyptic, members of the group question his motives. Matters come to a head when the Bureau of Alcohol, Tobacco, and Firearms, believing the group is stockpiling weapons, decides to raid the compound.

The raid of Mount Carmel develops into a 51-day stand-off between the Branch Davidians and the FBI. A direct line of communication is established between FBI negotiators and David Koresh on the inside. While army tanks and snipers set up outside, negotiators plead with Koresh to release the women and children inside the compound, and surrender himself to authorities. On April 19, a frustrated FBI starts inserting tear gas into the building with tanks. A fire develops, and fanned by high-winds, devours the structure and everyone inside.

The largest terror attack in our nation's history left images seared into our conscience that will never be forgotten. But for those caught in the middle, the memories are as strong today as they were in 2001. Hear the harrowing experiences of a trader who worked in the World Trade Center, a firefighter, a Port Authority officer, an ER doctor, an NYPD rescue worker, and a news reporter who were at Ground Zero, as well as a Pentagon contractor, an Airfone operator communicating with Flight 93, and the head of FAA operations as they experienced the tragic unfolding of a day none had dreamed possible.

The most prestigious race in the country is also Boston's most popular event. Crowds turn out by the thousands to cheer on the runners of the Boston Marathon. The day had always brought the city together, until the one year two suspects tried to tear it apart. When the Tsarnaev brothers planted bombs at the 2013 race, their horrific act killed three people, and maimed many more. Hear from one of the wounded, an on-scene medic, a trauma surgeon, and law enforcement officers who experienced the sudden terror of this cold-blooded act, and the pursuit of justice that followed.

What began as a calm spring morning in Oklahoma City erupted into the largest terrorist act our country had ever experienced. The truck bomb left by Timothy McVeigh at the Alfred P. Murrah Federal building killed 168 people, and altered the lives of hundreds more. Hear the dramatic stories of an office worker trapped in the rubble, a mother whose one-year-old daughter was in the building, a firefighter, a news reporter, and the head of the local FBI tasked with finding the perpetrator, and see how this act that was meant to stoke anti-government rage instead brought a shaken city together.

Followers from around the world travel to Mount Carmel to hear the preaching of David Koresh, a local Texas working-class kid turned prophet of God and leader of the religious group the Branch Davidians. But as Koresh's teachings become more and more apocalyptic, members of the group question his motives. Matters come to a head when the Bureau of Alcohol, Tobacco, and Firearms, believing the group is stockpiling weapons, decides to raid the compound.

The raid of Mount Carmel develops into a 51-day stand-off between the Branch Davidians and the FBI. A direct line of communication is established between FBI negotiators and David Koresh on the inside. While army tanks and snipers set up outside, negotiators plead with Koresh to release the women and children inside the compound, and surrender himself to authorities. On April 19, a frustrated FBI starts inserting tear gas into the building with tanks. A fire develops, and fanned by high-winds, devours the structure and everyone inside.