Before 'Boardwalk Empire' airs this Sunday night on HBO, fans can find out what will happen to their favorite characters in the episode summary that was recently leaked online.

This week's episode will start at 9:00 pm. ET on HBO and can be viewed online through live stream via the link provided below.

"Back from Cuba after a dangerous encounter, Nucky pays a visit to the now-retired Johnny Torrio (Greg Antonacci), who agrees to broker a meeting with the new "Boss of Bosses," Salvatore Maranzano (Giampiero Judica). In Chicago, Eli (Shea Whigham) and Van Alden (Michael Shannon) are tasked by Mike D'Angelo (Louis Cancelmi), Al Capone's (Stephen Graham) new right-hand man, to recoup money lost during a federal raid by Eliot Ness (Jim True-Frost)," according to the official synopsis via HBO.

"Fresh out of law school, Willie Thompson (Ben Rosenfield) has a job interview. Rebuffed by a group of would-be financiers, Nucky dines with Tonino Sandrelli (Chris Caldovino) before sending a message to Lansky (Anatol Yusef) and Luciano (Vincent Piazza). In 1884, a young Nucky deals with the death of his sister, Susan (Onata Aprile), while his father (Ian Hart) has a standoff with the Commodore."

Nucky is returning to Atlantic City, New Jersey (following his recent trip to Cuba) in order to set up a meeting with Salvatore Maranzano and Lucky Luciano.

Meanwhile, 'Scarface' Al Capone and his men will attempt to recover the money they lost as result of federal agent Elliot Ness' recent bust.

Beyond that, Actress Kelly Macdonald revealed in a recent interview how hard it was for her to say goodbye to her role as Margaret Thompson in the last season of the popular period drama series.

"It was very difficult, I mean I didn't realize how emotional it would be at the very end."" said Macdonald, according to Enstarz, "She's complicated...We filmed the pilot and the her story went on and I didn't quite know ever what she was gonna do next, but it's been really nice now we're finished to look back at the range of character she was."

Watch 'Boardwalk Empire' at 9/8 CT on the HBO network to check out what will happen next! 'Boardwalk Empire' can also be viewed online through live stream by clicking here.