By Tae Hong

Two Korean American brothers traveled to Seoul and threw themselves into its prostitution and sex trafficking scene with hidden cameras and undercover access. They were baffled.

The Jubilee Project’s Jason Y. Lee and Eddie Lee are now ready to share — and educate the world — with what they saw and heard.

“Save My Seoul,” a new feature-length documentary and the biggest ever by the Jubilee Project, provides an unfiltered window into the reality of the sex trade industry that runs rampant inside Seoul, one of the world’s most cosmopolitan cities.

Footage taken from hidden cameras and undercover access to prostitutes and pimps shows a Seoul set apart from the flashy, clean frames of the city typically seen through Korean popular culture.

The Jubilee Project is a non-profit organization that was founded by the brothers in 2012. More than 120 videos can be found on its YouTube channel, where awareness projects dealing with issues such as anti-bullying and autism have garnered more than a combined 11 million views.

Work on the documentary, which started in May 2013, was an eye-opening experience for the brothers, who had had no idea what they were getting themselves into and who took up the issue after a similarly eye-opening trip through Southeast Asia.

“I believe [human trafficking] is the largest injustice of our time,” Lee said. “When you see that firsthand and meet some of the victims, it’s impossible not to do something.”

Jason Y. Lee, who acted as director, said the brothers were almost caught with the cameras several times.

“We felt it was imperative to capture the truth and show what was really happening inside these red light districts and brothels,” he said.

According to Lee, Korea sees about 94 million cases of prostitution each year, a $13 billion industry that still sees itself being ignored by most Koreans, who “are more concerned with putting on a good face and hiding it.”

Until its official release in spring 2015, Jubilee Project plans to promote “Save My Seoul” through screenings at schools, churches and organizations. Screenings will begin on Oct. 15.

“I think this problem exists because the culture is broken and that’s because each of us are broken,” Lee said. “I hope this film makes us all think about and realize that this is wrong — we need to reevaluate the way that we see these girls and the value we put to human life.”

View the trailer below: