My Little Sister Callie

You grew up next to The Wall, an imposing concrete edifice that separated the city from the Displacement Zone, a lawless refugee camp full of displaced people. Your father ran a free clinic in the DZ until his passing five years ago, but your life in the city was largely removed from the desperate plight of the people on the other side of The Wall. All that changes when you meet Callie, a hungry little girl who has escaped from the Displacement Zone. After Callie is returned to the dangerous Displacement Zone you make up your mind to help her any way you can. When you find out that Callie is your little sister, how far will you go to bring her home?