It portrays protagonist Nucky Thompson trying to tie up loose ends before retiring from the bootlegging business, as his past comes back to haunt him.
Meanwhile, in New York, due to Nucky's manipulation of Mayflower Grain stock, Kennedy's business associates begin unloading their shares.
Kennedy suspects Nucky's involvement and confronts Margaret, who convinces him to short sell his own shares.
She meets Nucky at an apartment he is looking to purchase with his new fortune, to inform him of her success, and they share a slow dance in quiet.
While he publicly boasts that the charges of tax evasion won't stick, Capone says goodbye to his son before heading to court, where D'Angelo is waiting for him.
As Nucky dies, he sees a vision of himself as a young boy, swimming in the ocean and catching a coin.
Club gave "Eldorado" an A−, calling it a fitting end to the series: "In its characterization and dialogue, in its shots of the lonely shore or a smoky nightclub, in the moments of dry humor or unexpected tenderness, Boardwalk Empire was an often-fascinating portrait of an age.