These friends from Raqqa, Syria, risk their lives to document ISIS horrors in their hometown

The group call themselves “Raqqa is Being Slaughtered Silently.”

These friends-turned-citizen journalists, who call themselves “Raqqa is Being Slaughtered Silently” or RBSS, are now the subject of a new documentary called “City of Ghosts.”

“In my opinion, a camera is more powerful than a weapon,” one of the men featured in the documentary says in Arabic. “And that’s why whoever holds the camera is stronger.”

Oscar-nominated director Matthew Heineman followed their work against the ISIS propaganda machine.

“They really just wanted to protect and expose the horrors of their town, because they wanted to fight for their people,” Heineman told “Nightline.” “The fact that these guys are combating that with sort of counter campaign … to expose the truth, is a fascinating story to me.”

Aziz Alhamza and Hamoud Al-Mousa grew up in Raqqa and were motivated to start their activist group to provide footage that serves as a contrast to ISIS’s glossy, highly produced recruitment videos.

“So ISIS was reporting that everything is fine, Raqqa is paradise,” Alhamza told “Nightline.” “And for us we started to film the reality, what's really going on there in the city.”

“ISIS also claimed that all civilians are supporting and welcoming ISIS, and they are enjoying public support, which wasn’t true,” Al-Mousa added in Arabic. “It was our mission to show the other face of ISIS in the city.”

They started capturing and posting stark scenes, such as buildings reduced to rubble and children waiting in never-ending food lines, and brutal scenes of torture of civilians by ISIS.

Their Facebook page quickly became one of the only non-ISIS sources for information.

“I don't come from a political background family,” Alhamza said. “I had nothing to do with politic[s], media, whatever. I was a biochemistry student.”

But now, they are considered enemies of ISIS.

“There is a threat against me on social media channel that belongs to ISIS,” Alhamza says in the documentary. "But as we say in Raqqa, ‘death is death.’"

The threats to their lives became so intense that Alhamza, Al-Mousa and many others were forced to flee Syria, but they have figured out a way to continue their work from the outside using an internal team of 17 citizen journalists to feed them information, which they then distribute online.

Alhamza said the lives of those journalists are also in grave danger.

“If anyone notice[s] that they're doing something wrong, taking photos or collecting news, they will be executed,” he said. “But when you believe in something, you will not care about what will happen.”

“They’ve suffered immensely for what they’ve done,” Heineman added. “They’ve lost colleagues, they’ve lost family members. They’re still being threatened by ISIS.”

Al-Mousa, in particular, has paid a heavy price. ISIS executed his father and filmed the whole incident. Al-Mousa said he has watched the video several times.

“Every time I feel tired or that I should stop my work and stay away from the uprising and the media because of everything I have lost, I watch the video and watch the look in my father’s eyes,” he said in Arabic. “It feels like if he is sending me a message to continue what I have been doing and to never stop for the sake of those who died.”

Alhamza is now living in Germany. He and others sought refuge there after ISIS killed one of their own. Even life outside of Syria doesn’t promise safety, they have still continued to get death threats from the so-called caliphate, but they are determined to keep going because Alhamza said others have given their lives for their organization.

“We feel ashamed even to think about stopping this war,” he said.

Alhamza and his group are hoping that one day their work will no longer be necessary and they can move back home.

“I'm still optimistic,” he said.

Top Stories

Top Stories

Top Stories

Top Stories

ABC News Live

ABC News Live

24/7 coverage of breaking news and live events