What happened in Unforgotten Season 3 Episode 4? Plot details, explored

Unforgotten (Image Via: Apple TV+)
Unforgotten (Image Via: Apple TV+)

Unforgotten Season 3 continues to unpack new layers with Episode 4, and with this comes the shocking revelations, broken marriages, and one brutal act of violence.

The Hayley Reid investigation explodes as secrets finally catch up with every suspect, leaving lives in ruins. If you're wondering exactly what went down, the truth involves a church robbery, devastating family confrontations, and a fatal turn that changes the case forever.

Here's a breakdown of what really happened.


Pete Carr’s double life finally catches up to him in Unforgotten Season 3 Episode 4

Episode 4 of Unforgotten Season 3 puts Pete Carr right in the front of the firing line. Detectives Cassie and Sunny confront him after DNA places him at the church break-in on the same night Hayley disappeared.

Pete admits to stealing silver to scrape together flight money, but that's just one piece of his shady past. His record reveals a prison term in Hong Kong for defrauding a disability charity out of $100,000, which forced the organization to shut down.

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Pete's downfall comes out extremely quickly. His wife decides she has had enough of his lies, his boss fires him once the press splashes his name across the headlines, and by the time he realizes how far things have gone, he's a pariah. He even tries to warn Jamie Hollis that he knows something about Jamie's son Eliot from that fateful night, but Jamie refuses to help.

When Cassie's mistake with the case file leads to Pete's crimes being leaked online, the public turns against him viciously. Alone and disgraced, Pete doesn't get the chance to fight back. On his commute, a stranger stabs him, leaving him bleeding on the street. His death shifts the entire case into darker territory.


Jamie Hollis faces the collapse of his carefully built image in Unforgotten Season 3 Episode 4

While Pete's lies come to the forefront, Jamie Hollis faces his own reckoning. The TV quiz show host finds himself trapped between his career and his marriage as the press digs deeper into his past.

After it's revealed that police once interviewed him, his show suspends filming. His wife is furious that he hid this, and things worsen when Jamie's ex-wife, Mel, goes public with claims about his string of affairs. Mel even suggests he had troubling tendencies in his private life, which prompts women from his past to email her with disturbing accounts.

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The scandal eats into Jamie's family life, too. When his current wife confronts Mel, she is told that these accounts are already being handed over to the police. With Pete showing up at Jamie's door begging for a place to stay, Jamie draws a hard line and refuses.

That decision? Yep, it all backfires, as Pete threatens to reveal what he knows about Eliot. Suddenly, Jamie's once stable world looks like it could collapse, and the idea that his son may have been involved in Hayley's disappearance lingers heavily over the episode.


The Finch and Lowe families bring new layers of suspicion in Unforgotten Season 3 Episode 4

With Unforgotten Season 3 Episode 4, he other suspects don't escape the spotlight either. Tim Finch's ex-wife, Derran, steps forward with disturbing allegations. She claims Tim manipulated and abused her during their marriage, describing years of mental and physical torment.

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But her attempt to blackmail Tim for money weakens her credibility, and though she shows photos of bruises, they can't be verified. His daughters back him up, though one remains visibly unsure. The doubt in her silence adds an unsettling note.

Chris Lowe's past also resurfaces in devastating fashion. His daughter Maya reveals why his marriage collapsed years earlier: police caught him using his work computer to access child abuse websites. It explains why his family cut ties and casts a disturbing shadow over his new relationship with Jamila and her young son. For Cassie and Sunny, this revelation is another heavy stone in an already overburdened case.

Meanwhile, Unforgotten Season 3 has Cassie herself make serious mistakes. Overworked and sleepless, she loses Pete Carr's file at a café, and once it leaks online, chaos ensues. Her credibility suffers just as the case demands more precision. The personal toll on her becomes clearer, setting up dangerous consequences for the team moving forward.


Episode 4 of Unforgotten Season 3 is a turning point where secrets blow wide open and the weight of the past crushes multiple lives. Pete Carr's tragic end, Jamie Hollis' unraveling reputation, and the disturbing truths about Tim and Chris shift the case into dangerous new territory.

By the end, Cassie and Sunny are left with more questions than answers, and the suspects look more entangled than ever in Hayley Reid's disappearance.

Edited by IRMA