A retired Louisiana detective takes a crack at solving an old case-the murder of a woman whose body was dumped in a bayou and left to decompose for three months. With modern forensics, the detective may finally have what he needs to find her killer.

With DNA results shifting their focus, the Iberville Parish Sheriff's Office detectives need more insight on their victim and use cutting edge technology by enlisting experts to comb for evidence at the victim's crime scene.

The detectives track down the last people who may have seen Eugenie alive. As the team decides where to go from here, we get a glimpse into Rodie Sanchez and Aubrey St. Angelo's lives at home and the personal struggles they face.

Detective Lori Morgan looks into a cutting edge DNA technology that could be the key to seeing the face of Eugenie's killer.

After receiving a tip, Aubrey sits down with a convicted felon. Rodie tries to rekindle his relationship with his son as the team continues their efforts to speak with Eugenie's ex husband.

Detectives have narrowed their focus to a few possible leads in connection with Eugenie Boisfontaine's homicide investigation as they obtain a subpoena for an interview.

Viewers get a look at never-before-seen footage of the stories that helped shape the investigation. The episode will also get insight from the detectives who worked on the case and chasing down the leads.