Episode 7 of "High Potential" kicks off with the grim discovery of Frank Webber's lifeless body inside his recreational vehicle. The narrative then jumps to a week later, where Morgan finds herself immersed in family time with her children, until Ava expresses her heartfelt wishes for a "Yes Day," one of which is to explore Morgan's workplace. Obliging her daughter's enthusiasm, Morgan brings Ava to the precinct. However, their visit is abruptly overshadowed when Morgan's team is suddenly taken hostage by two armed individuals, who claim to have strategically planted bombs across the premises. As panic ensues, the occupants are evacuated, with Karadec and Oz, who were fortunately outdoors, rushing in, while Selena endeavors to assess the perilous situation.
The captors communicate to Selena's team outside that an innocent man was arrested, and they demand justice by urging the LAPD to uncover the genuine perpetrator behind the crime. A closer examination reveals that these captors, who happen to be army soldiers, are referring to the murder case of Frank Webber. Selena engages in a conversation with the detective in charge, who asserts that the case was airtight, with incriminating evidence pointing unmistakably towards the accused, Logan Hansen. They revisit Logan's interrogation, uncovering that he had aspirations to rescind his overseas posting to build a life with his sweetheart, Brook, prompting the police to hypothesize that Frank's refusal fueled Logan's rage, ultimately leading to Frank's untimely demise.
Intriguingly, one of the captors is revealed to be Brook, Logan's beloved girlfriend and fellow soldier. As Morgan, now a hostage, scrutinizes crime scene photographs, she detects a peculiar anomaly: the blood pattern hints at a missing document, potentially whisked away by the perpetrator. Meanwhile, Karadec ventures to Frank's RV and stumbles upon a printed charge form intended for submission to a military tribunal. Brook, skeptical that the document was meant for Logan, maintains his reputation as a paragon of military virtue. The team embarks on a mission to uncover the true culprit, amidst escalating tensions within the besieged building, where Morgan discovers Ava hiding in a room. Ava, filled with remorse, apologizes, explaining that she couldn't bear to leave her mother alone in such peril.
Karadec and Oz interrogate Frank's daughter about his whereabouts, eliciting the revelation that he had skipped dinner with her on Monday. Leveraging her insights, Morgan and the team decipher Frank's phone, deducing that he might have escorted someone from a local bar to a detox center. Further investigation by Karadec and the team yields CCTV footage of another suspect. However, just as they inch closer to the truth, Jeremy, Brook's accomplice, begins to unravel under the pressure.
A detective, accompanied by Tom, the diligent janitor, attempted to restrain Jeremy, but the confrontation culminated in Tom being shot in the leg. Having deduced that Brook and Logan's desire for a child was the impetus behind his insistence on staying with her, Morgan, now a mother herself, emotionally appealed to Brook to allow Tom to receive medical attention. With Ava accompanying him, they were able to leave the scene.
Left alone with Jeremy, whose demeanor became increasingly erratic, Brook tried to soothe him, asserting that their intention was never to cause harm. Morgan's astute detective work finally connected the dots, realizing that Frank might have been tracking someone by planting a tracker on them, given the absence of any call records or messages indicating he was summoned to either location. Since the perpetrator was unaware of being tracked, Morgan reasoned that they might still have a chance to apprehend him.
Karadec arrived on the scene and apprehended the soldier, who had killed Frank to prevent him from reporting his drug use to the military tribunal, which would have led to his dismissal. Frank, who had the responsibility of mentoring soldiers, had discovered the soldier's drug use and was poised to expose him.
Inside the police station, with the case seemingly wrapped up, Jeremy's frustration boiled over. He struck Brook and seized the remote control for the purported bombs in the building, demanding a bargaining chip from the police. However, Morgan scrutinized the device and discovered it was a fake. It became clear that Brook had never planted any bombs, and Jeremy was eventually subdued. The case was closed, with Logan being released and the LAPD team exiting the building unscathed.
The episode concluded with Morgan visiting Tom in the hospital, where they shared a humorous exchange about their thwarted date. Later, she arrived at the office to find a delightful surprise: a thank-you celebration organized by her colleagues, who gifted her a new desk of her own.
