In a small Tennessee town, teacher Alex Campbell turns his sociology class into an unlikely force for truth. What begins as a 40-year-old cold case study becomes a legacy project, as each year's students uncover evidence suggesting these we…

Evidence begins to suggest their lead suspect wasn't a one-off killer but tied to at least six victims. Focusing on the strongest cases, they gather evidence that could force authorities to brand him a serial killer, edging closer to a fede…

For the first time, the class partners with investigators-visiting crime scenes, engaging locals, and launching a headline-making campaign. But unlike TV true crime, they learn real change is slow and incomplete. As the school year ends, ro…