Sydney and Malik attend an ultrasound appointment where they see the distinct shape of their baby for the first time. Their fertility specialist, Dr. Tanaka, “graduates” them to a regular OB-GYN, Dr. Adams, whom Sydney already knows. Malik is overcome with gratefulness. Later, Sydney’s suggestion that they travel to New York to meet Wesley sparks a major argument. Malik fears that her investigation is becoming an obsession that could endanger the pregnancy and trigger a mental-health crisis like the one she experienced in San Francisco.

Sydney insists that she’s stronger now and needs him to trust her. Malik confesses that his fear is rooted in his own guilt for failing to see how much help she needed in the past. The conversation becomes a breakthrough, and they agree to communicate more honestly. Sydney affirms her commitment to both their baby and the investigation. Understanding its importance to her, Malik agrees to the trip.

In their Williamsburg hotel room, Sydney looks out at the Manhattan skyline and reflects on her lonely years as a student at New York University, wondering if she ever unknowingly crossed paths with Carol or Wesley. Later, she and Sasha meet Wesley at a coffee shop in Bed-Stuy. Wesley is immediately struck by Sydney’s strong resemblance to his mother. When Sydney shows him Carol’s final yearbook picture on her phone, he expresses surprise at seeing his mother so young before confirming that it’s her.

Wesley explains that his mother was born Mary Wright and became Mary Jones when she married and that she told him a fabricated story about her past. Sydney notes that the name echoes Carol’s favorite singer, Mary Wells. Sydney and Sasha reveal that her real name is Carol Singleton, that she’s their aunt, and that her mother lived in the same Raleigh house until her recent death. Shocked and hurt by his mother’s lifelong deception, Wesley decides that they must go to her home in Harlem and confront her immediately.

As a snowstorm begins, Wesley leads Sydney and Sasha by train to Carol’s house. Carol answers the door, cheerfully greeting Wesley mid-sentence before her expression drains upon seeing Sydney and Sasha. After Wesley introduces the two women as her nieces, Carol wordlessly slams the door in their faces.

The blizzard forces Sydney, Sasha, and Malik to remain in their hotel. Sydney realizes that if Carol is alive, she’s in danger; with suspicion around Michael intensifying following the discoveries in Raymond’s yard, he would be more determined than ever to silence her as a witness. She fears that their search may have led Michael directly to Carol. She composes a long, empathetic email to Carol, apologizing for ambushing her and offering a family connection. Sydney concludes by warning Carol that Michael is still a threat and that they need her help to ensure that he never hurts anyone again. On New Year’s Day, Carol replies, agreeing to meet with them, along with Wesley, at her home the next morning. She states that she will only be able to tell her story once.

The next morning, Sydney, Sasha, and Wesley arrive at Carol’s house. Carol appears exhausted as she lets them in. In the kitchen, Sydney informs her that the bodies of Marian, Geraldine, and Sally were discovered buried in Raymond Green’s old yard and that Sally was buried holding a box containing items belonging to the other girls—Bettie’s library card, Loretta’s driver’s license, Geraldine’s glasses, and Marian’s necklace. Sydney also reveals that Sally’s charm bracelet was found in the trunk that Michael had given them. Visibly shaken, Carol says that she doesn’t deserve the life she has built. Sydney gently pleads with her, stressing the closure that the victims’ families have sought for decades. Overwhelmed, Carol finally confesses that she knows the location of the graves because she helped bury the girls.

Carol recounts the full story of the murders. She explains that she followed Michael and Raymond into the wetlands and witnessed them murder Loretta Morgan. Michael discovered her there and, calling her by the pet name “Starling,” coerced her into helping bury the body. He threatened to frame her beloved brother, Larry, for the crimes if she ever refused to help them. For months, she was forced to act as a decoy, luring girls into their car to make them feel safe.

She was manipulated into luring her own friend, Sally Dunn, to her death. As Sally made excuses not to get in the car, Michael silently pinched Carol’s thigh in warning, causing her to call out to Sally and convince her to come. While helping bury Sally in Raymond’s yard, she secretly swapped Michael’s class ring into the box of trophies he buried with the body. A few months later, Raymond took Carol to the wetlands alone and forced her to dig; she understood that he wanted her to dig her own grave. When she began digging in one spot, he warned her to dig elsewhere, revealing that at least one other girl—Bettie Brooks—was already buried there. He then tried to sexually assault her; she fought back and killed him with the shovel in self-defense. After burying his body, she fled Raleigh that night, eventually making her way to New York to start a new life. Having unburdened herself, Carol agrees to return to Raleigh and testify against Michael.

Fifteen months later, Sydney attends a private dedication for Angels’ Clearing, a new memorial for the victims located in the wetlands. She’s accompanied by Malik and their baby daughter, Nia. It took the jury only two hours to find Michael Hall guilty on multiple counts of kidnapping, false imprisonment, and first-degree murder. He awaits sentencing. Because she was a minor and a victim herself, the state didn’t press charges against Carol for her involvement.

Sydney and Sasha have created a popular podcast about the case titled Every Missing Black Girl. Their mother has reconciled with them, giving them a share of the money from the sale of their grandmother’s house. Sydney and Malik’s relationship has deepened, and both have adjusted their careers to prioritize their family. Carol attends the dedication but stays on a nearby bridge, feeling like she doesn’t deserve the other families’ forgiveness. She tells Sydney that finding her provided the strength to finally tell the truth and begin to forgive herself. While holding her daughter and standing with her aunt, Sydney feels a sense of deep peace, her family’s secrets finally laid to rest.