"What's it like walking into a brothel and asking someone if they've got a child you can have sex with?," reporter Amos Roberts asks Australian Tony Kirwan, in this week's Dateline.
"I was extremely uncomfortable when I first started doing this," he responds.
"But at the same time knowing that if I don't go in, then the kids that are in there are never going to have a chance of getting out."
Tony runs Destiny Rescue, a charity based in Southeast Asia, whose mission is to investigate the child sex trade across the region - working with local authorities to rescue young girls and arrest criminals.
We join him on the streets of Manila, as he tackles the Philippines' child sex trade - which an estimated 100,000 minors are forced into each year.
Watch the full story at the top of the page.
Reporter / Camera: Amos Roberts
Producer: Amos Roberts, Agnes Teek
Fixer: Fixer Ink Philippines, Dhang De Castro, Angela Casauay
Editor: Micah McGown