As impossible as it is to comprehend, slavery still generates $150 billion in profits per year -- and 26 percent of the 27 million slaves around the world are children. Adrian Paul and Ethan Dettenmaier expose the places were slavery is most prevalent and highlight how Walk Free and the CNN Freedom Project are making a difference.

And in our Hero of the Week segment, learn how Kendall Ciesemier and Kids Caring 4 Kids have raised nearly $1 million to protect, educate, and empower vulnerable orphans in Africa. We also spotlight previous Heroes Neha Gupta, Vivienne Harr,Kylesh Sharma, and the founders of Free the Children!