See first-hand what it was like for firefighters who witnessed the carnage and despair that terrorists wreaked on September 11, 2001. Mike Lennon, an FDNY retiree, went back to work to help dig for survivors and mourn with his brothers, documenting the historical events with his camera. Interspersed is a moving tribute to firefighter John Satore of Ladder 5, who died that fateful day and whose memory comes alive in an interview he did pre-9/11.