This Sunday, as America pays tribute to those lost during the September 11th attacks, CBS will air a special presentation, “9/11: 10 Years Later,” featuring never before seen footage from the historic events and interviews with heroes looking back 10 years later.

Produced by filmmakers Jules and Gedeon Naudet and James Hanlon and hosted by Robert De Niro, this unprecedented and exclusive insider’s account of the World Trade Center attack contains the only known footage of the first plane striking the World Trade Center and the only footage from inside Ground Zero during the attacks. The program will also include footage from events marking the 10th anniversary, as well as new interviews with many of the firefighters who were featured in the original program.

“9/11: 10 Years Later” airs on CBS, Sunday, September 11th at 8 PM. For more clips and information, visit CBS.com.