Agents Vic Hanoverian and Brandon visit Geoffrey MacIntosh, the Gardener, in the prison infirmary. Scarred from the greenhouse explosion and on constant oxygen, he hears—with his lawyer present—that his son, Desmond, died by suicide, leaving a note: “Tell Maya I’m sorry” (177). Vic explains he chose to deliver the news in person as a fellow father.

Eddison then calls Inara and Bliss, asks them to take a delivered box up to the roof, and tells them about Desmond. The box holds mugs for them to smash as release. Inara admits relief, having feared the call was about another girl’s death. The agents listen to the shattering.

Priya reports petunias have been delivered; the security camera recorded only static, and Agent Archer suspects a short-range EMP. On Sunday, Priya and Deshani return from Denver to find a clover wreath on their door and the camera ripped out. Flooded by memories of victims—including Kiersten Knowles, Julie McCarthy, Mandy Perkins, Rachel Ortiz, Chavi, Aimée, Darla Jean Carmichael, Leigh Clark, and Natalie Root—Priya binges on Oreos; Deshani finds her and helps her purge. Despite doubts, Priya insists they cannot stop trying to catch the killer.

At the chess park, Officers Lou Hamilton and Michael Clare ask about Landon Burnside; the vets identify him from a photo. The officers report Landon was found dead the previous day, though he appears to have been killed weeks earlier. Clare recognizes Priya from Boston and makes an inappropriate comment; Deshani confronts him. Priya calls Eddison and Agent Finnegan (Finney).

The FBI learns Landon’s legal name was Landon Cooper, a sex offender incarcerated when Aimée was killed. Eddison theorizes the killer murdered Landon for harassing Priya, whom he appears to view as his, while the team also considers whether he kills to preserve perceived purity or punish perceived wickedness. From Chavi’s file, they note a man who spoke to the sisters at a festival before her death. Finney reports yellow chrysanthemums have arrived and that Section Chief Ward refuses protection for the Sravastis.

Reading Chavi’s journals, Priya finds that Chavi confronted a man following them a week before she died. From the killer’s perspective, he believes he killed Chavi to preserve her before college and murdered Aimée as a supposed kindness after Priya moved. After hyacinths arrive, Clare keeps showing up uninvited; Archer and his colleague, Sterling, arrange an off-the-books protection detail. Meanwhile, the Quantico team reexamines Darla Jean’s case, identifies her brother Jameson, and learns he vanished shortly after her death. Yvonne confirms he went off-grid and likely assumed a new identity.

On Tuesday, the final flower—dahlias—arrives. At Deshani’s office, Priya reads a letter from Inara urging lethal self-defense if necessary. Reviewing online memorials, Priya realizes Joshua from the café is Jameson, Darla Jean’s older brother. Fearing there won’t be enough evidence, she decides to set a trap for him. She persuades Archer to drive her to Shiloh Chapel on Saturday and makes sure the vets overhear. At the café, she “accidentally” spills her purse; Joshua helps, seeing a chapel postcard and Chavi’s photos. She pointedly tells Archer she wants to arrive before sunrise. Vic reminds Eddison that Saturday is Priya’s birthday and she will need him at his best.