New episodes of Cold Justice are headed your way soon and TV Guide has your exclusive first look at the upcoming season!

In the first trailer for Season 5 — which premieres Saturday, Aug. 4 at 6/5c on Oxygen — the team takes on disturbing new cases including the murder of Barbara Mendez, a wife and mother from the small town of Oneida County, Wisconsin. The investigation into her death leads the crew down a dark path where they uncover crimes against children and a church rife with lies, and things get personal when the victim's daughters send a letter to the investigators. The Cold Justice team's investigation into Mendez's murder helped provide new resources to authorities, eventually leading to the arrest of her suspected killer.

The unscripted series comes from Dick Wolf, who also serves as executive producer, and follows seasoned prosecutor Kelly Siegler as she and a rotating team of detectives (Johnny Bonds, Steve Spingola, Aaron Sam, Tonya Rider and Abbey Abbondandolo) investigate cases involving small-town slayings that have long since gone cold. Over the course of the first four seasons, their probing has led to 37 arrests and 18 convictions.

Catch the team in action when Cold Justice returns Saturday, Aug. 4 at 6/5c on Oxygen.

<em>Cold Justice</em>Cold Justice