Otga may never reach adulthood. 

The Mongolian boy, like many others living in undeveloped countries, suffers from a serious heart defect, and even if his parents could afford it, local doctors rarely have the training or facilities for this kind of heart surgery.

But there's hope for otga.  Hundreds of children are getting free surgeries at some of the finest hospitals in the U.S., thanks to the Children's Heart Project, sponsored by the Christian charity Samaritan's Purse.

Now a new reality TV series tells the children's story.

Click play to watch more from Craig Sable, with Samaritan's Purse, about how this project is chanign the lives of children worldwide, following this report.

In the series, college intern Cissie Graham Lynch helps connect several Mongolian children with surgeons and hospitals who can change their lives.  Cissie is the daughter of Samaritan's Purse president and evangelist Franklin Graham.

The medical program brings young patients and their parents to cooperating U.S. hospitals for free heart surgery.  During their five to six week stay, patients are surrounded by volunteers, from host families to the surgeons themselves.

So far, the Children's Heart mission has provided life-changing operations for more than 550 children with congenital heard defects.

Craig Sable is with the Children's National Medical Center in Washington, D.C.  He's also a volunteer with the Samaritan's Purse Children's Heart Project.