Season 0 of Boardwalk Empire premiered on August 23, 2010.

Season 1 of Boardwalk Empire premiered on September 19, 2010.

On the eve of Prohibition in 1920, Atlantic City county treasurer Enoch "Nucky" Thompson is looking to cash in. Prohibition may have outlawed alcohol, but in Nucky's world it has opened up highly lucrative opportunities for gangsters and rumrunners looking to provide "liquid gold" for a thirsty nation. In a city defined by notorious backroom politics and vicious power struggles, Nucky battles a relentless federal agent, ambitious underlings, and opportunistic rivals—including Arnold Rothstein, Lucky Luciano, and Al Capone.

Season 2 of Boardwalk Empire premiered on September 25, 2011.

It's 1921 and after rigging the Atlantic City mayoral election, Nucky appears to be in control of the city. However, Nucky's grip soon begins to unravel as he is arrested for election fraud and members of both his inner circle and family begin to question their allegiances, while mobsters including Arnold Rothstein, Lucky Luciano, Meyer Lansky, and Al Capone wait in the wings, looking for the right opportunity to grab a bigger piece of Nucky's pie.

Season 3 of Boardwalk Empire premiered on September 16, 2012.

Atlantic City, 1922: The Roaring '20s are about to begin in earnest and despite a booming economy, alcohol is scarce and gangster violence is heating up. Amidst this backdrop, Nucky, whose marriage to Margaret has become a sham after she signed away his highway windfall to the church, faces the challenge of mending old relationships while encountering new competition from a hair-trigger gangster who builds a strategic bulkhead between New York and Atlantic City in an effort to siphon off Nucky's alcohol business.

Season 4 of Boardwalk Empire premiered on September 8, 2013.

On October 2, 2012 HBO announced it had renewed the television series Boardwalk Empire for a fourth season; the season premiered on September 8, 2013 and concluded on November 24, 2013.

Season 5 of Boardwalk Empire premiered on September 7, 2014.

The final season of Boardwalk Empire is set in 1931. Needless to say, a few things have changed in Atlantic City.