Baghdad, Iraq (CNN) -- At one of Baghdad's two female juvenile prisons, the young Iraqi girls live in limbo, sadness and desperation permeating every aspect of their interrupted lives.

Some face punishment for prostitution. Others are charged with ties to terrorism. And then there are the victims, also behind bars.

Fifteen-year-old Zeina's sad journey to prison began two years ago when she says was sold into sex slavery. "My father came and took me to go visit my grandfather in Syria," says Zeina, "and I went with him."

The family trip turned out to be a cover story, and Zeina found herself faced with the most horrific possible reality. She says she was then forcefully taken from Syria to the United Arab Emirates and sold into sexual slavery.