Paris Green (Boardwalk Empire)

"Paris Green" is the 11th episode of the first season of the HBO television series "Boardwalk Empire", which premiered November 28, 2010. The episode was written by supervising producer Howard Korder and directed by Allen Coulter.
Plot.
Van Alden continues to question Sebso's lies about Winslow's death, prompting Sebso to call Nucky asking for leads to regain his trust. Nucky tells him about an illegal still in the woods on the outskirts of Atlantic City, and suggests Sebso tell Van Alden about it. As they look for the still, the two agents come upon a black church's river baptism, prompting Van Alden to shed tears. Sebso, who is Jewish, puts in for a transfer to Detroit and confronts a still-suspicious Van Alden about his hostility and anti-Semitism. Exasperated in spite of his actual guilt, Sebso demands to know how he might earn his trust before leaving. In response, Van Alden brings him to the river and bullies the smaller man into being baptized. Driven into a religious frenzy by Sebso's confusion and refusal to "repent," Van Alden dunks him underwater repeatedly and ends up drowning him. Van Alden declares to the crowd that divine justice has been done, leaving his intentions ambiguous.
Gillian asks Jimmy to visit the dying Commodore, his biological father, which he does reluctantly. Jimmy notes that Gillian was thirteen years old when he was born and the Commodore over 50, making him the result of a rape. The Commodore tries to mollify Jimmy, even telling him that "the wrong man is running this town," implying that Jimmy should supplant Nucky, whom Gillian reveals was the one who brought her to the Commodore decades previously. Jimmy decides to stay with his father as he passes away. The decision proves crucial, as Jimmy is first to find out when the doctor detects significant amounts of arsenic (Paris Green) in the Commodore's hair sample. The Commodore begins to recover, and Jimmy confronts Gillian with an empty canister of arsenic that he found in the trash. He reassures her of his support, whatever her intentions, but she remains silent.
Rothstein is called to Chicago to defend against charges of his involvement in the Black Sox Scandal. The surviving D'Alessio brothers have gone into hiding outside of Atlantic City. Richard finds one of them staying with family members. The mild-mannered Richard somewhat ruthlessly suggests killing the family as a means of getting the brothers to "stick their heads up," a tactic hearkening back to his past as a sniper in World War I; Jimmy is undecided. Meanwhile, Angela prepares to leave town with Tommy and Mary, leaving a note for Jimmy. She goes to the photography shop only to find it empty, unaware that Robert became aware of Mary's plan and absconded with her. Distraught and helpless, Angela rushes home, only to find that Jimmy has already read the note. With their son in the room, neither mentions the note, and Jimmy seems determined to carry on as before.
Nucky continues to deal with the pressures of winning both the election and the gang war with the D'Alessio brothers. Meanwhile, the boyfriend of Margaret's "kept" neighbor Annabelle loses all his money in the original Ponzi scheme. When he flees with Annabelle's life savings, she offers to resume her old relationship with Nucky. Margaret catches them talking in his office and later argues with him, criticizing Nucky for involving her in his business, then insisting she ignore its unsavory realities. Nucky argues that Margaret's own choices have brought them together, none of which reflect well on her own character. Margaret also levels her suspicions about Nucky's part in the death of Hans, which Nucky indirectly confirms by retorting that neither of them has or should have any regret about what happened to him. 
Eli is furious that, by confirming Margaret's suspicions, Nucky has endangered them both. Eli insults Margaret, calling her a liability created by Nucky's selfishness and criticizing his hypocritical aversion to violence. After a heated argument, Nucky drops Eli from the Republican ticket in favor of Halloran, who has been angling for the nomination. Nucky arrives at Margaret's place only to find that she has left, her whereabouts unknown. The last scene shows Nucky visiting a palm reader on the Boardwalk, while his butler looks on.
Reception.
Critical reception.
IGN praised the episode, calling it "outstanding" and went on to say, "With his safety nets gone and his finger tightening around a trigger gunning for Rothstein, Nucky is a man alone, surrounded by a war that can go any way but good. The future is uncertain, tension hangs and fans of the series are in the best position possible going in to what's sure to be a game-changing finale."
"The A.V. Club " gave the episode an A-.
Ratings.
"Paris Green" slid two tenths of a point in to a 1.1 adults 18–49 rating, but had a nearly identical average viewership vs. last week. The episode had a total of 3.004 million viewers.