Chicago P.D. Season 13 Episode 4 — A Mystery From Voight’s Past Shakes Firehouse 51 (October 22, 2025)

A Deep Secret from Voight’s Past

In Chicago P.D. Season 13 Episode 4, titled “Root Cause,” a dark memory comes back to haunt Sergeant Hank Voight. The story begins when Voight receives a strange yellow envelope placed on the windshield of his car. Inside is a photo of a young boy in a hospital bed—and shockingly, it’s him. The episode aired on October 22, 2025, and connects Voight’s hidden childhood trauma to a new case involving a string of violent robberies.


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Voight and Eva Imani at the training ground
Caption: Voight and newcomer Eva Imani complete weapons training before a dark discovery changes everything.

A Dangerous Case Begins

Voight is seen completing weapons training with the new officer, Eva Imani (played by Arienne Mandi). When they return to his car, they discover the envelope. Eva notices the picture, but Voight avoids explaining, clearly disturbed by what he saw.

Soon, the Intelligence Unit—which includes Kim Burgess, Adam Ruzek, and Dante Torres—is called to investigate a series of brutal robberies. The suspect is described as a man with curly hair and a red jacket. He attacks his victims violently but always apologizes afterward. Things get worse when he kidnaps a woman and later drops her off at a hospital, where she sadly dies.

The suspect is identified as Gary, a man battling drug addiction and emotional trauma. His wealthy father, Raymond, blames Gary’s girlfriend Sage for his troubles.


Image:
Eva Imani goes undercover at the AA meeting
Caption: Eva Imani goes undercover at an AA meeting, using empathy and intelligence to get the truth from Sage.

Eva Imani’s Undercover Mission

To get more information, Imani goes undercover at an AA meeting pretending to be a fellow addict. She earns Sage’s trust and learns that Gary was deeply scared of his father and suffered emotional abuse. When Voight and his team finally track Gary down, they try to calm him, but his mental state breaks down. Gary keeps shouting about “a voice in his head,” possibly referring to his father, before taking his own life.

Voight later informs Raymond about Gary’s death. Raymond shows no emotion, which alarms Voight and Imani. Sensing something is wrong, Voight quietly reports the family to Child Services, believing there’s more abuse happening behind closed doors.

The Photo That Changes Everything

At the end of the episode, Eva opens the envelope again and realizes the boy in the picture is young Voight himself, wearing an old 1970s police uniform. The message is clear—someone from his past is trying to make him face painful memories he buried long ago.

This haunting image reveals that Voight’s story of pain didn’t start in his adult life—it began in his childhood. His silence about the photo shows how deeply the memory still hurts him. Even though he asks Trudy Platt to find out who sent it, he hides the real details, proving he’s still not ready to open up.

A New Bond Between Voight and Imani

Imani’s arrival brings a breath of fresh air to the team. Fluent in Arabic and skilled in undercover work, she adds emotional depth to the show. Her empathy helps her connect with people, something Voight struggles to do.

As their partnership grows, Imani becomes the one person who challenges Voight to face his emotions. Her honesty contrasts sharply with his secrecy. Together, they represent trust, pain, and healing—themes that define this emotional episode.

Final Thoughts

Episode 4 of Chicago P.D. Season 13 combines action, mystery, and emotion. It’s not just about solving crimes—it’s about understanding how the past shapes who we are. With the photo’s secret still unsolved, fans can expect more shocking truths about Voight’s early life in the coming episodes.

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