A chance phone call brings together an FBI crime analyst, a DOJ forensics expert and a Texas Ranger, who join forces in an attempt to gain a cold-case murder confession from convicted killer Samuel Little. They get much more than they ever imagined.

After uncovering the vast scope of Samuel Little's murders, an FBI crime analyst, DOJ forensics expert and a Texas Ranger must discover the identities of more than 90 victims he's claimed and close those cases.