It's likely among one of the most dangerous places a team of journalists has ever traveled for CNN. The random and indiscriminate killing of citizens in Homs, Syria made this a story the world had to see.

This one-hour documentary will expose a side of the story that rarely gets reported: the behind the scenes stories of those who helped the team of journalists along the way, the tough choices CNN executives made to keep their team safe, the dangerous journey into the heart of the onslaught, and the unfiltered account of those reporting and surviving a trip into hell.

Don't miss CNN Presents: 72 Hours Under Fire this Sunday at 8:00 pm ET, reairing at 11:00 pm and 2:00 am ET.