When Neagley's childhood friend, Tommy, dies after walking into an oncoming train, the police are ready to label this as an apparent accident. But after receiving a mysterious message from the deceased, Neagley knows something is amiss.

With Neagley's investigation into the suspicious death of her childhood friend, Tommy Crane, hitting countless roadblocks, a long-buried secret from Neagley's past threatens to upend everything she once knew of her childhood.

After an ambush turns up her best break in the case thus far, Neagley is blindsided by local law enforcement's attempts to sideline her.

Neagley's investigation into Tommy's death has drawn the focus of powerful enemies - putting herself and her team in danger.

Hidden truths from Neagley's past come rushing to the forefront, forcing her to rely on her newfound team more than ever.

With new evidence coming to light, Neagley realizes she is not only responsible for solving Tommy's murder, but countless others as well.

As clues dry up, Hudson is forced to make a devil's bargain to keep the case from going cold.

With the legacy of her deceased childhood friend on the line, and the lives of her team under threat, Neagley mounts one last stand to bring Tommy's killers to justice.