《海滨帝国》再现了美国禁酒令时期(1920-1933年)大西洋城这个海滨小城阴暗面的生存状况。《海滨帝国》的编剧是《黑道家族》的编剧特伦斯·温特,该剧根据作家Nelson Johnson的原著《海滨帝国:大西洋城的诞生,鼎盛以及堕落》(Boardwalk Empire:The Birth, High Times and Corruption of Atlantic City)改编。
Police captain Laure Bertraud returns to work as she and her team begin a complex new investigation after a human torso is discovered in a pile of garbage in the 20th arrondissement in Paris. Meanwhile, a high profile criminal trial tempts ambitious lawyer Joséphine Karlsson, and Judge Roban faces a health crisis. This new season pushes every character to their limit, and forces them all to question long-standing affiliations and beliefs.