 The first hijacked plane hits the North Tower of the World Trade Center at 8.46 a.m. The second plane then crashes into the South Tower at 9.03 a.m. In under an hour, the South Tower falls. Despite fears of the North Tower soon collapsing, firefighters in the building continue their search and rescue. As they're going down, they come across this woman, Josephine Harris, who had been up in the 60s and had run out of steam.