Episode 5 of *House of Guinness* unfolds six months later, with Arthur finding himself dragged into court on charges of voter fraud. Sean confides in Olivia that while the court has absolved Arthur of direct culpability in the bribery scandal, the election results have been declared null and void. Amidst this turmoil, sparks fly between Sean and Olivia, leading to an unexpected liaison, while Reverend Henry summons a heavily pregnant Anne for a clandestine meeting. He lays bare Arthur's guilt in the bribery affair and threatens to unveil his secrets.
Upon Arthur's return home, Potter informs him of Sean and Olivia's clandestine romance. Arthur, in a fit of fury, silences the servants and instructs Potter to turn a blind eye to Olivia's private endeavors. Later, confronting Olivia, he voices concerns over the servants' growing suspicions about the noises emanating from her quarters. Olivia, with a practiced lie, reassures Arthur of her unwavering support and partnership.
Meanwhile, Edward is reeling from the verdict against Arthur, fearing the potential tarnishing of the Guinness legacy. Adelaide seeks him out in his office, proposing a series of reforms aimed at polishing the family's tarnished image. Edward, desperate for a lifeline, agrees to let Adelaide spearhead these initiatives, albeit with a caveat—he insists on consulting his team before making any final decisions.
In the midst of this domestic drama, a letter from Byron arrives, painting a rosy picture of his endeavors in America. Byron reveals his success in promoting Guinness beer among New York's locals, boasting of a strategic partnership with Eamon Dodd, a Fenian commander. He discloses that he has offered Dodd a substantial discount to boost Guinness sales stateside. Edward, incensed by this unilateral decision, decides to seek Ellen's counsel.
Meanwhile, back at the brewery, Arthur senses Edward's growing ambition, perceiving it as an attempt to overshadow him and sow discord within the family business. The stage is set for a clash of wills, as the Guinness dynasty teeters on the brink of internal strife.
That fateful night, Edward crossed paths with Ellen and was stunned to discover that the 15% commission Byron had pledged to Eamon would instead be funneled to the Fenians, fueling their audacious revolt against British tyranny. Edward's heart sank with dismay at this revelation, but Ellen, with a glint of resolve in her eyes, suggested that this twist of fate could rekindle the flame of their partnership, tarnished as it was by Arthur's deceitful vote fraud. Seeking solace, the two shared a drink under the starlit sky, their conversation deepening into the night until, in a moment of vulnerability, they found themselves entwined in each other's arms.
Meanwhile, Arthur found himself in the company of Patrick, a man with whom he had shared a fleeting encounter in the past. Patrick, sensing Arthur's turmoil, offered a comforting presence, and their paths intertwined once more in a fleeting yet intense reunion.
In the midst of these personal upheavals, Anne welcomed a new life into the world, a beacon of hope amidst the chaos. Conversely, Christine's world crumbled when she learned of Benjamin Jr.'s secret marriage to Lady Henrietta and the impending arrival of their child, driving her to the brink of despair in a desperate act.
At the brewery, tension simmered as Arthur confronted Sean, the foreman, issuing a stern warning about his clandestine relationship with Olivia. With a mixture of intimidation and cunning, Arthur demanded that Sean maintain this illicit liaison only as long as he deemed fit. Later that day, a reunion unfolded as Arthur, Edward, and Benjamin Jr. came together, each learning of Benjamin Jr.'s remarkable journey to sobriety.
The stage was set for a grand occasion as Arthur, Olivia, Benjamin Jr., Henrietta, and Edward ascended to inaugurate the new Black Beer, a symbol of resilience and innovation. Amidst cheers and applause, Arthur expressed his heartfelt gratitude to Edward for his unwavering dedication and extended a sincere apology for the turmoil caused by the baseless allegations that had once tainted his name.
As the curtain fell on this pivotal moment, Arthur stood tall, promising a fresh chapter for the Guinness family, a promise of renewal and unity. Edward, seizing the opportunity, engaged Arthur in a candid conversation about the events that had transpired in New York, seeking closure and understanding in the wake of their shared trials.
