Debbie St. John rides a horse during her reunion with Stefan Horlacher. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_09.jpg
George Phoenix, who worked in the North Tower of the World Trade Center. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_21.jpg
Jan Demczur, who worked as a window cleaner for the North Tower of the World Trade Center. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_20.jpg
Debbie St. John and Stefan Horlacher are reunited after many years. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_08.jpg
George Phoenix, who worked in the North Tower of the World Trade Center. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_22.jpg
John Paczkowski and George Phoenix, who worked in the North Tower of the World Trade Center and were stuck in an elevator together on 9/11, are reunited after many years. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_23.jpg
John Paczkowski, George Phoenix and Jan Demczur, who used to work in the North Tower of the World Trade Center and were stuck in an elevator together on 9/11, discuss the events of that day. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_27.jpg
George Phoenix and Jan Demczur hug one another while John Paczkowski stands in background.(National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_33.jpg
People flee the falling South Tower of the World Trade Center on September 11, 2001. (AP Photo/Amy Sancetta)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_Archive_38.jpg
The skyline of New York City on September 11, 2001. (Hubert Boesl/picture-alliance/dpa/AP Images)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_Archive_39.jpg
Jan Demczur, who worked as a window cleaner in the North Tower of the World Trade Center on 9/11, remembers the events of that day. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_32.jpg
John Paczkowski, who worked in the North Tower of the World Trade Center on 9/11, recalls the events of that day. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_30.jpg
John Paczkowski and George Phoenix, who worked in the North Tower of the World Trade Center and were stuck in an elevator together on 9/11, are reunited after many years. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_24.jpg
John Paczkowski, who worked in the North Tower of the World Trade Center. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_18.jpg
Jan Demczur, who worked as a window cleaner for the North Tower of the World Trade Center. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_19.jpg
John Paczkowski, Jan Demczur, and George Phoenix, who used to work in the North Tower of the World Trade Center and were stuck in an elevator together on 9/11, are reunited after many years. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_25.jpg
John Paczkowski, George Phoenix and Jan Demczur, who used to work in the North Tower of the World Trade Center and were stuck in an elevator together on 9/11, are reunited after many years. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_31.jpg
Jan Demczur, who worked as a window cleaner in the North Tower of the World Trade Center on 9/11, remembers the events of that day. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_28.jpg
Stefan Horlacher, who worked at the World Trade Center on 9/11. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_14.jpg
Clouds of smoke rise from the burning upper floors just before the second of the twin towers of the World Trade Center in New York collapsed on Sept. 11, 2001. (Hubert Boesl/picture-alliance/dpa/AP Images)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_Archive_37.jpg
Smoke billows from lower Manhattan on Sept. 11, 2001, in New York. (AP Photo/Chad Rachman)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_Archive_36.jpg
Debbie St. John, who worked at the World Trade Center and was injured on 9/11 by a falling piece of the second plane. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_01.jpg
John Paczkowski and George Phoenix, who worked in the North Tower of the World Trade Center, talk together after many years. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_29.jpg
Debbie St. John, who worked at the World Trade Center and was injured on 9/11 by a falling piece of the second plane. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_03.jpg
John Paczkowski, who worked in the North Tower of the World Trade Center. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_17.jpg
Firefighters navigate the rubble of the World Trade Center on September 11, 2001. (Richard Levine/Alamy Stock Photo)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_Archive_34.jpg
Firemen are deployed near the site of the World Trade Center in New York, in this Sept. 12, 2001, file photo. (AP Photo/Mark Lennihan/FILE)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_Archive_35.jpg
Stefan Horlacher and Debbie St. John talk together after many years. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_16.jpg
Debbie St. John, who worked at the World Trade Center and was injured on 9/11 by a falling piece of the second plane. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_02.jpg
Debbie St. John and Stefan Horlacher are reunited after many years. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_06.jpg
Stefan Horlacher and Debbie St. John ride horses together during their reunion. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_12.jpg
Behind-the-scenes as crew films Debbie St. John riding a horse in 9/11 Reunited. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_13.jpg
Debbie St. John and Stefan Horlacher are reunited after many years. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_07.jpg
Debbie St. John and Stefan Horlacher ride horses together during their reunion. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_11.jpg
Stefan Horlacher, who used to work at the World Trade Center, gets out of a taxi on his way to be reunited with Debbie St. John. Stefan helped save Debbie when she was struck by a piece of the second plane on 9/11. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_04.jpg
Stefan Horlacher rides a horse during his reunion with Debbie St. John. (National Geographic/Virginia Sherwood)Episode: #1 "8:00 AM – 9:07 AM"Air Date 11/30/-0001101_911Reunited_10.jpg
