9/11: One Day in America | MEGA EPISODE | National Geographic

First Response: As a hijacked plane hits the North Tower, we follow the first firefighters on the scene and their race against time to rescue trapped civilians. The South Tower: We follow extraordinary stories of escape in the South Tower and the paramedics on the ground facing an onslaught of badly injured people. Collapse: A day of terror and the struggle to survive continue as the Pentagon is hit, Flight 93 is hijacked and the South Tower collapses.