Five years after a jury pronounced three teens guilty in the murder-mutilations of three little boys in the shocking 1993 crime at Robin Hood Hills in Arkansas, HBO returns to the grisly scene to explore a question many are still asking: Are the wrong people in jail? This documentary sequel focuses on the battle between John Mark Byers, the quirky stepfather of one of the victims, and an Internet support group that is lobbying to get new trials for convicted killers Damien Echols, Jason Baldwin and Jessie Misskelley.