Episode 10 of "Will Trent" kicks off with a harrowing scene of carnage unfolding at a trailer park. As Trent and the sheriffs rush to the location, an eerie sense of disquiet settles over them upon arrival. Just as Trent begins to scrutinize the chaotic scene, a gunman opens fire, compelling them to return fire and neutralize the threat.
Elsewhere, Faith finds herself in a meeting with Franklin, who gently urges her to confide in someone regarding her harrowing encounter with Officer O’Hara. Pretending to be unfazed, Faith excuses herself to her home, where her mother, Evelyn, arrives to find the place in disarray. Faith, far from welcoming her mother's presence, craves solitude to drown her sorrows in front of the television. However, Evelyn, undeterred, has no intention of leaving her daughter's side just yet.
Back at the crime scene, Trent discovers a petrified little boy named Theo, hiding and clearly a witness to the horrors that unfolded. Despite his terror, Theo remains silent. Later, Trent receives a call from Faith inquiring about the case. He swiftly fills her in on the backgrounds of the deceased men, hypothesizing that the killings were part of a drug war. The catch? They've yet to uncover the drugs, and their sole witness, a silent child, is unknown to them, both in terms of identity and parenthood. Overhearing their conversation, Evelyn attempts to offer assistance, but Faith brushes her off.
Meanwhile, Trent endeavors to bond with the young boy, whom he affectionately dubs Scoot. Using food as a means to gain his trust, Trent coaxes Scoot into recounting what he saw. Through this tender exchange, Trent learns of a third man present during the shooting. He subsequently entrusts Amanda with watching Scoot while he interrogates an acquaintance of one of the victims, yielding minimal helpful information. Though skeptical, Trent is left with few options.
Returning to Scoot, Trent finds a Child Protective Services officer on the scene, intent on placing Scoot in a temporary foster home. Refusing to part with the boy, Trent instead takes him to his own home. In the comforting confines of Trent's home, Scoot finally feels secure enough to open up, requesting a bedtime story from Trent. In return, Trent inquires about Scoot's mother, prompting Scoot to reveal that she had to leave but promised to return. He also confides in Trent his mother's name and his own.
Later that night, Trent calls Angie to check in and update her on Theo, alias Scoot. Angie, who has been notably absent lately, even piques Ormewood's curiosity. When Trent finally catches up with Angie, he inquiries about her whereabouts. Angie unburdens herself, sharing her concerns about Lenny's new family and her fears that he might harm his new stepdaughter.
The following morning, Evelyn meticulously prepares a heartfelt breakfast for Faith, endeavoring to lend a helping hand by escorting her to the office. Inside the office, Trent and Theo cut an impressive figure in their matching suits, poised and ready to crack the case open. Evelyn strives to maintain a civil demeanor towards Trent, despite the underlying tension between them. Faith briefs Trent on the financial records of their victims, revealing that they had received a substantial influx of cash just two days prior to the attack.
Meanwhile, Evelyn makes her way to visit Amanda, confronting her head-on about the betrayal that had left her reeling. She feels betrayed because Amanda had spearheaded the investigation into her department, despite Evelyn's initial plea for assistance in ferreting out the trouble. Though Evelyn was proven innocent, she still lost her job, a wound that still smarts. Just as their altercation intensifies, Amanda's secretary interrupts, announcing that Theo's grandmother has been found. Trent conducts an interview with the elderly lady and promises to deliver Theo to her once Child Services have conducted a thorough background check.
Later, Faith informs Trent that the shooter who attempted to end their lives has regained consciousness post-surgery, prompting them to rush to the hospital. Evelyn decides to accompany them, much to Faith's consternation. The shooter reveals a name: Johnny Cash. Trent urges Evelyn to shelve her judgmental remarks if they plan to work together on the case, emphasizing that they still need to locate the drugs.
Elsewhere in the city, Angie and Ormewood delve deeper into Lenny's background, prompting Angie to reach out to his stepdaughter, Crystal, at school. She tries to explain that Lenny poses a grave danger, but Crystal remains skeptical, finding the whole situation discomfiting. Angie leaves her with her contact information, urging her to call if she ever finds herself in peril.
This move backfires when Lenny's fiancée storms into the police station, confronting Angie. The tension between the two women escalates, prompting Franklin to intervene. He urges Angie to confer with Trent and devise an alternative approach to dealing with Lenny. Angie rejects his advice, prompting Franklin to warn her that her behavior could jeopardize her career if she doesn't change her tactics.
Regrettably, Angie turns a blind eye to his well-meaning advice and persists in her obsessive pursuit of Lenny. Lenny, cornered, finally reveals his true colors, devoid of any guilt for his actions towards her. Angie, furious, warns him that his days are numbered and vows to end his life. Seeking solace in darkness, she ventures to a drug dealer to procure narcotics.
Meanwhile, Trent chauffeurs Theo to his grandmother's store, where the warm embrace of family greetings envelops them. Among the introductions, Theo's heart skips a beat as he recognizes Deacon, his uncle, as the figure from the shooting. Noticing Theo's unease, Trent subtly excuses himself to take Theo to the restroom, where Theo confirms that Deacon is indeed the notorious 'Johnny Cash.' Realizing the gravity, Trent swiftly requests reinforcement and conceals Theo and Betty for their safety.
Simultaneously, Theo's frantic mother bursts into the precinct, her worried face a picture of distress. Faith, with gentle reassurance, attempts to soothe her frayed nerves. The revelation that Grandma had come searching for Theo stuns her; it transpires that she has long sought custody and deceived the authorities to attain it.
Back at the store, a sinister turn as Deacon, his brother, and their mother turn against Trent, revealing a chilling truth—Grandma's motives were twisted, willing to eliminate her own kin to secure Theo. Trent, displaying remarkable bravery, manages to overcome the trio, securing Theo's safety.
With the enigmatic case finally unraveled, Trent bids Theo a fond farewell and entrusts him back to his mother's care. Elsewhere, Faith grapples with an emotional breakdown, but fortunately, her mother stands by her side, offering unwavering support in her darkest hour.