"Boardwalk Empire" Season 5 episode 8 series finale, "Eldorado" will be aired on Sunday, Oct. 26 at 10.30 p.m. on HBO.

In the previous episode, fans saw Nucky at war with Luciano and trying to hold onto his assets in Atlantic City, but without much success. In fact, Willie (Ben Rosenfield) and Eli also got involved in Nucky's war. On the other hand, Maranzano met his fate following Willie's abduction by Lucky. The episode also showed Nucky reading Gillian's (Gretchen Mol) letter from the hospital.

In 1897, Mabel and Nucky argue about a young runaway from Trenton, while Nucky did a discreet favor for the Commodore (John Elllison Conlee). In fact, many things happened on episode 7 and below is the spoiler for the final episode of the "Boardwalk Empire" Season 5.

An official synopsis of "Broadwalk Empire" Season 5 episode 8 released by HBO reads, "After a shakeup, Nucky looks to relocate to Manhattan from Atlantic City. Margaret impresses Nucky and a grain-company stockholder; Luciano tends to unfinished business while establishing a mob commission; Willie shares underworld details with his boss, the U.S. Attorney; Nucky visits Gillian at the hospital. In 1897, Nucky copes with a family crisis, while making a deal with the Commodore that will settle his future."

While the series finale that will be aired next Sunday will draw the curtains on an empire, Lucky plans to eliminate Nucky forever and kill him. Now, what remains to be seen is whether he will be successful.

Meanwhile, what has been intriguing viewers is the decision to continue to include the Young Nucky flashbacks in the final episode, mainly because these are generally used to build the story more, and to inform the Nucky character.