Dr. Chris travels to the Big Island of Hawaii where he samples a local delicacy and dives into the deep to swim with manta rays. Next, he takes a helicopter ride to get a bird's eye view of Kilauea. He then embarks on an epic hike through the mud.
Firefighters in Austin, Texas find the bodies of four girls who had been shot in the head and then burned. Detectives focused in on four young men, including two who had confessed to the crime. Years later, in a shocking turn, the case is blown wide open.