As the narrative of "Miss Scarlet" unfolds in this episode, Patrick Nash (portrayed by Felix Scott) finds himself immersed in a book within the confines of his prison cell. The cell door creaks open, and in strides Mr. Fulton (played by Vahidhin Prelic). Nash, inquisitive, inquires about another consignment of alcohol. Fulton gently reminds him of an outstanding debt from the previous delivery. Suddenly, Nash is informed that the Governor (Milan Cucilovic) desires his presence. He learns he is to face the sentencing review committee, convened to reassess the sentences of several inmates. Lord Campbell (Richard Teverson), with a stern yet considerate demeanor, beckons him to take a seat. Campbell reveals that due to prison overcrowding, his sentence may be reconsidered for reduction. Nash, feigning redemption, proclaims his newfound faith and claims to be a changed man. Moments later, he walks free from the prison gates.
Elsewhere, Ivy (Cathy Belton) and Eliza (Kate Phillips) engage in lighthearted chatter about Inspector Blake, with Eliza mentioning an upcoming meeting with Mrs. Parker (Helen Norton) regarding their lease. She confesses their financial constraints, prompting Ivy to jest about finding a kind gentleman and tying the knot.
Nash, freshly freed, strides into Eliza Scarlet's office and recounts his unexpected liberation to Clarence (Paul Bazely). Clarence delivers a bombshell: all their accounts are drained, and their license has been revoked. Nash, desperate for a glimmer of hope and financial stability, expresses his need for an office and funds. Clarence doubts Eliza's willingness to collaborate with him.
Eliza visits Mrs. Parker, who introduces her to Dr. Timpson (Paul Thornley). After a cursory conversation, Timpson excuses himself. Eliza and Mrs. Parker then delve into the lease details, with Parker agreeably maintaining the previous year's rate. Eliza is taken aback to hear of Nash's release. He brazenly proposes sharing her office space, asserting it will be a temporary arrangement, no longer than a month. Eliza sets forth three rules, chief among them not involving her in his endeavors, granting him a week's trial.
Ivy encounters Mr. Potts (Simon Ludders) struggling to remove a ring from a deceased individual. Potts beams with excitement, announcing a raise and his plans for better accommodation—a cozy abode in Aldgate. He enthusiastically schedules a viewing for Ivy, envisioning it as their marital nest.
Nash retreats to Battersby's Boarding House, comforting himself with the notion that it's merely a stepping stone. Lord Campbell seeks him out for a confidential discussion. Campbell confesses to using his influence to expedite Nash's release, acknowledging Nash's knack for getting things done. He unveils his plight: a wayward younger brother, Bertie, who has been a financial burden for years, leaving a trail of debts, including one to Dylan Cooper. Campbell admits Bertie's days are numbered and he is loath to abandon him. He implores Nash, despite his revoked license, to locate Bertie and secretly arrange his passage to Australia by Friday.
If he declines, the iron gates of prison will slam shut on him once more. Campbell dangles a fifty-pound note as bait, yet insists on concrete proof. He urges Nash to expedite his efforts, reminding him that Friday is just around the corner. Ivy unleashes her grievances about the house to Eliza, who confesses a budding sympathy for Potts. Ivy fails to comprehend the urgency, prompting Eliza to inquire if she fears being left behind. Assuring her friend of her well-being, Eliza heads off to work.
Clarence engages Nash in conversation, who reveals a bleak situation—stuck in a case dead-end. Nash pleads for assistance, explaining his impending doom if Bertie Campbell, alias Bertie, remains elusive. Though Clarence desires to lend a hand, he finds himself helpless. They delve into the Cooper gang's dynamics, with Nash yearning to ascertain if Cooper already has Bertie in his clutches. He seeks someone adept at masquerading as a gambler to discreetly inquire.
Nash quizzes Clarence on his poker prowess, leading them to The Poisoned Parrot Inn where Nash imparts his wisdom. The topic of deceiving Eliza surfaces, with Nash emphasizing the art of maintaining a stoic poker face. In a moment of desperation, Nash decides to part with his cherished watch, a keepsake from his maiden paycheck.
That evening, Clarence dons the guise of Charles Windermere, a Notting Hill solicitor, and ventures into the pub to engage in a poker game. He successfully inserts himself into Dylan Cooper's (Steve Hartley) company and the circle of players. Meanwhile, Mrs. Parker visits Eliza at her workplace to collect the lease money, but Eliza senses an unspoken agenda. Mrs. Parker confesses her budding romance with Dr. Timpson, who proposed but failed to show up as promised, sparking fears for his well-being. She reveals a generous donation of £1,000 to his charity, seeking reassurance from Eliza.
Clarence excels in the game, strategically dropping Bertie Campbell's name to Cooper, whose demeanor shifts instantly, acknowledging Bertie's debt. Cooper abruptly halts the game but orders Clarence to stay put. When they are alone, Cooper interrogates Clarence, whose cool demeanor melts into a confession—he's an undercover detective inspector from Scotland Yard. Clarence demands to know Bertie's whereabouts and exits the pub shortly thereafter, urging Nash to flee without delay.
Eliza, concerned for Dr. Timpson, heads to St. Agatha's Hospital. Her surprise deepens when Nash emerges from the doctor's office, only to be reassured by a passerby claiming to be Dr. Timpson himself, adding another layer of mystery to the unfolding tale.
At the cozy corner of the pub, Nash and Eliza delved into the intricacies of their case, their voices mingling with the murmur of other patrons. Nash articulated his rationale for taking on Lord Campbell as a client, his eyes reflecting a resolve born of necessity. He proposed an alliance, envisioning a scenario where they'd reclaim Mrs. Parker's fortune together. Eliza, however, was less than thrilled by Nash's decision to drag Clarence into their predicament. Nash conceded, his voice tinged with unprecedented humility, that he had sunk to depths unknown before. He suspected that Campbell was carrying the money on his person, while Eliza, though reluctant, agreed to lend a hand, stipulating that they must turn Campbell over to the authorities if the cash proved elusive.
Nash harbored fears that Campbell had orchestrated his disappearance with the aid of an accomplice. In search of guidance, Eliza sought out Solomon (Brian Bovell), who requested three hours to consult with his fellow Solomons. Meanwhile, Ivy ventured to see Mr. Potts, hoping to mend fences. Potts, however, was unyielding in his disappointment, handing her a letter that freed her from all obligations. He sensed her lack of enthusiasm for marriage and, in a gesture of profound love, set her free, acknowledging that his affection for her far outstripped her own for him.
Nash's anxiety over locating Campbell escalated, only to be interrupted by Solomon's swift return accompanied by Solomon Four (Branislav Zeremski). Solomon Four revealed that he had dispatched Campbell onto a train bound for Cumbria, specifying a destination beneath the Rookery. Eliza and Nash, eager for answers, descended into the labyrinthine tunnels, their flashlight beams cutting through the darkness until they stumbled upon a concealed doorway. Inside, they discovered a bed with a dummy serving as a decoy, and just as they pieced together the puzzle, a figure attempted to slip away. Bertie Campbell collided with Clarence in his haste to escape, only to be cornered moments later.
Nash conveyed his brother's desire for Bertie's exile from the city, suggesting Australia as a suitable destination. Bertie, however, balked at the idea. Nash persisted, revealing their shared intent to accompany him. Bertie clung to a desperate lie, claiming to have lost the money in a card game with Solomon. Nash, unconvinced, cautioned Eliza against rash actions. Bertie's plea to avoid police custody fell on deaf ears, until Nash relented, agreeing to escort him to Scotland Yard. The impending dusk added urgency to their mission, as they feared becoming trapped within the Rookery's embrace.
Bertie's cries of 'undercover police' ignited a storm of thrown objects, compelling Nash to fire a warning shot into the air before pursuing Bertie alone. Returning to their office, Nash informed Eliza of his failure to capture Bertie. They toasted to their shared lowest point, Nash reassuring her that the only direction left was upwards.
The following morning, Eliza noticed Nash's watch missing from its rightful place at the pawnshop. She grilled Clarence for the receipt, only to learn that the watch had vanished. Suspicion fell upon Patrick, whom Eliza confronted, accusing him of betrayal. Patrick confessed to locating Bertie the previous night but had since changed his mind about letting him go free. Loyalty to Eliza outweighed his earlier reservations, and he unveiled Bertie, bound and helpless, within a carriage.
Nash asserts that his sole destination is Australia, with Lord Campbell's remuneration securely tucked away in his pocket, as he embarks on a fresh start. Patrick bids an emotional farewell to Eliza, who expresses her deep sentiment of missing him immensely. Nash, attempting to ease the mood, remarks that he might return sooner than they think.
Meanwhile, Potts pays Ivy a visit, and she confides that Reverend Harvey (Branko Duric) has recently paid them a call. Eliza, determined to share her ordeal with someone close, visits Mrs. Parker to recount her experiences with Bertie Campbell. Parker, understandably concerned, fears becoming the subject of town gossip. Eliza, ever resilient, reassures her that she will weather this storm with dignity.
Returning to the warmth of her home, Eliza is delighted yet surprised to learn that Ivy and Mr. Potts have set a date for their nuptials. Potts, ever the devoted fiancé, plans to move in with them, accommodating Ivy's reluctance to relocate.
