Depending on which series you are watching, there are several significant "Black Sunday" episodes and historical events you might be interested in researching.
: The series is based on the New York Times best-selling book The Long Road Home: A Story of War and Family by ABC News journalist Martha Raddatz.
If you are referring to the National Geographic miniseries The Long Road Home , the first episode " Black Sunday " depicts the ambush of the 1st Cavalry Division in Sadr City, Baghdad, on April 4, 2004.